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Astronomy Archives, Since November 1991


Table of Contents:
  1. Liquid mirror telescopes
  2. Astronomy instrument usage for object identification
  3. Condensed optics telescope repair
  4. Why do we not feel the Earth turning?
  5. Two high tides
  6. Turning Earth and distance to Sun
  7. Our speed through space
  8. Distance from center of Milky Way to Sun
  9. Motion of Sun
  10. Size of Sun
  11. Temperature of the Sun
  12. Cool Sun, hot solar atmosphere
  13. Solar and planetary temperatures
  14. Plasma
  15. Solar age
  16. Solar process
  17. Burning Sun
  18. Sun Fuel
  19. What does the Sun burn?
  20. Solar activity and cosmic rays
  21. Radiation from the Sun
  22. Burning out of the Sun
  23. Color of Sun. Energy in black hole
  24. Oxygen and the Sun
  25. Was Descartes moonstruck?
  26. Observing planets and blue moons
  27. Orbital speeds of planets
  28. Ages of planets
  29. Sizes and distances in the solar system
  30. Planets - glow? distance?
  31. Rings around planets
  32. Planet formation
  33. Formation of the asteroids and planets
  34. Planets glow at night
  35. Compositions of planets; collisions with Earth
  36. Oxygen on planets
  37. Planets and their masses
  38. Why other planets?
  39. Smallest Planet
  40. View from Mercury or Uranus
  41. Building material for Venus
  42. Venus' opposite rotation
  43. Melting diamonds on Venus
  44. Floating Earth
  45. Distance from the Earth to the Sun
  46. Earth-Moon distance
  47. Rotational speed of Earth and Moon
  48. Earth rotation
  49. Earth's rotation and wobble questions
  50. Spinning Earth
  51. Spinning planets
  52. Night and day
  53. Earth's orbit
  54. Stopping the Earth's rotation
  55. Cause of the Earth's rotation
  56. Earth: Round or Egg-shaped?
  57. Aurora borealis
  58. Red sky
  59. Meteoroid speed
  60. Shooting stars
  61. Meteors hitting Earth
  62. Future meteor shower
  63. Meteor in 2001
  64. Collecting Meteors
  65. Meteor hitting Earth
  66. Burning in the atmosphere
  67. Will the world explode?
  68. Earth's end
  69. Earth, Ancient Egypt--Mars?
  70. Replacement for human species
  71. Life in space
  72. Inhabiting celestial bodies
  73. Other life forms
  74. Can humans live on another planet?
  75. Vegetation on planets
  76. Solar system life elsewhere?
  77. Life in space?
  78. Aliens from another planet
  79. Length of day
  80. Moonrise
  81. Name of the Earth's moon
  82. Creation of the Moon
  83. Why cannot we see the far side of the Moon?
  84. Burned up flag
  85. Paschal Full Moon predictions
  86. Earth acquiring the Moon
  87. Viewing of solar eclipses
  88. Solar eclipse
  89. What makes an eclipse?
  90. Lunar eclipse and Orion Nebula
  91. Next solar eclipse
  92. Moon's angular size
  93. Size of the Moon
  94. Chemical make up of the Moon's atmosphere
  95. Composition of the Moon
  96. Moon dust, age of Moon, and creationism
  97. Solar eclipse on the Moon
  98. Stationary orbit over the Moon
  99. Meteorites in crater?
  100. Terraformation of Mars
  101. Face of Mars
  102. Composition of Mars
  103. Olympus Mons and Mars
  104. Life on Mars
  105. Martian days
  106. Raw Clementine topographic data?
  107. Origin of asteroids
  108. Magnetism and asteroids
  109. Asteroids information on the Internet?
  110. Census of asteroids
  111. Composition of Jupiter
  112. Travel through Jupiter
  113. String of pearls
  114. Jupiter and Shoemaker-Levy 9. What happened? Teacher resources
  115. Shoemaker-Levy 9 collision with Jupiter and nearby planets
  116. Shoemaker-Levy 9 and Jupiter's ocean waves
  117. Comet Shoemaker-Levy 9 impacts Jupiter (References)
  118. Jupiter - comet collision -- on Earth, too
  119. Jupiter crater question
  120. Jupiter's blemishes meet colorful chemistry
  121. Giant Red Spot on Jupiter dissipating
  122. Magnets on Io
  123. Ganymede
  124. Naming Moons
  125. Saturn, the Universe, and Planet X
  126. Saturn's Rings
  127. Uranus' tilt
  128. Uranus
  129. Composition of Neptune
  130. Neptune's color
  131. Neptune: gravity? ozone layer? pharmacology?
  132. Neptune's orbit
  133. Temperature of Neptune
  134. Pluto's dimensions
  135. Pluto's distance from the Sun
  136. Pluto
  137. Pluto-Neptune crash
  138. Planet X
  139. Other planets
  140. Searching for planets
  141. Planets in other galaxies
  142. New solar system
  143. Halley's Comet
  144. Oort cloud
  145. Composition of comets
  146. Lasers and comets
  147. Biggest comet
  148. Composition of a comet's tail
  149. Naming of Halley's Comet
  150. Comet cycles
  151. Halley's Comet
  152. Halley's Comet heading to Chicago
  153. Why stars?
  154. Composition of stars
  155. Heat source of stars
  156. Twinkling stars
  157. Twinkling of stars and not planets
  158. How many stars? Twinkling?
  159. Census of stars
  160. Stars or sand - census
  161. Oldest star
  162. Brightness of stars
  163. Biggest and smallest stars
  164. Closest star
  165. Farthest star from Earth
  166. Stars bigger than the Earth
  167. Place to see no stars
  168. Pleiades
  169. Star clusters
  170. Stars and constellations
  171. Constellation myths
  172. Distance to the Big Dipper Stars
  173. Positions of stars/constellations in 2500 or 3500
  174. Farthest constellation we can see
  175. Star charts
  176. Nearest star system to Alpha Centauri
  177. Mass of Alpha Centauri
  178. Significance of dark matter
  179. Betelegeuse
  180. Variable stars
  181. Dark matter distribution
  182. Milkyway shape
  183. Blue Galaxy
  184. Where is the missing dark matter - the other 90%??
  185. Temperature scale on H-R diagram
  186. Mass-Luminosity formula
  187. Mass of stars and life cycles
  188. Defining supernova
  189. Defining Quasars
  190. Quasar power
  191. Far objects - quasars
  192. The end of the Sun
  193. Old stars
  194. Old stars and the age of the universe
  195. Black hole size
  196. Black Hole and event horizon
  197. Black holes in Milky Way?
  198. Coming close to a black hole
  199. Causes of black holes
  200. Attraction of black holes
  201. Colliding black holes
  202. Matter in black holes
  203. Filling up a black hole
  204. Black holes and generating gravity
  205. Latest black hole news
  206. Escape of gravitons from black holes
  207. Radiation from black holes
  208. How black are black holes?
  209. Detecting black holes
  210. Black hole/curvature of space model
  211. Black/white holes
  212. Antimatter in a white hole
  213. Universes beyond black holes
  214. Black hole references
  215. When the universe was created
  216. Explanation of the Big Bang Theory
  217. Big-Bang Theory
  218. Big bang theory - infinite energy
  219. Cause of imperfections in universe
  220. Bounded universe
  221. Where the universe is expanding
  222. New age of the Universe
  223. Beyond the universe
  224. You cannot get there from here
  225. Existence of parallel universe
  226. Alone in the universe
  227. Cosmic Ruminations
  228. Time - cyclical?
  229. Big crunch theory
  230. Galactic evolution
  231. Galaxies and Formations
  232. Milky Way speed
  233. Travel time to farthest galaxy
  234. Coplanarity of solar system & Milky Way
  235. Galactic size and shape
  236. Between galaxies; sunspots
  237. Gravity
  238. Microgravity
  239. Artificial gravity
  240. Neutrino mass
  241. Tachyons
  242. Measuring the speed of light
  243. Relativity and curved space
  244. Space/time
  245. Reference point in outer-space
  246. Time travel
  247. Travel to next star
  248. The future of space travel
  249. Star Trek question
  250. Investigation of space
  251. Water for space survival
  252. Long term physiological effect of space flight
  253. Space packs
  254. Bone density changes in space
  255. Sound in space
  256. Sound and motion of Earth observed in space
  257. Building a spaceship
  258. Russian Mir (1995)
  259. Voyager 2 (1995)
  260. Status of Galileo Probe (1995)
  261. Hubble Space Telescope project update (1995)
  262. Nuclear waste disposal in space
  263. Absolute zero
  264. Archaeoastronomy
  265. Caracol at Chichen Itza
  266. World time zones
  267. Large Telescopes In The U.S.
  268. Center Of The Universe
  269. Big Bang
  270. Rebirth Of The Universe
  271. Blue Galaxy
  272. The Black part of Outer Space
  273. Why Is The Night Dark?
  274. Intergalactic Material and Solar Questions
  275. Burning Sun
  276. Motion Of Sun
  277. Velocity Of The Sun
  278. Milky Way
  279. Stars In The Universe
  280. Winter Hexagon
  281. Direction Of Stars
  282. Neutron Star
  283. Pleides
  284. Binary Star Systems
  285. Closest Star
  286. Quantifying Gravity
  287. Red Giant
  288. Existence Of Black Holes
  289. Singularity
  290. Time Travel
  291. Purpose of Space Program
  292. Hubble Space Telescope
  293. Spacecraft Ulysses
  294. Solar Sails
  295. Outer Space Propulsion
  296. Future Travel To Mars
  297. Life Beyond Our Solar System
  298. Others On the Moon
  299. Alien Life
  300. Land Mass Distribution
  301. Rotation Of The Earth
  302. Thunder And Lightning in Outer Space
  303. Glowing Moon
  304. Crater
  305. New Planet
  306. Number Of Planets
  307. Planetary Binary Orbits
  308. Pluto
  309. Twin Planets
  310. Uranus
  311. Rings Of Jupiter and Other Planets
  312. IO's Volcanoes
  313. Comet Collision with Jupiter
  314. Water On Planets
  315. Planetary Studies - Mars
  316. Composition Of Venus
  317. Diamonds On Venus
  318. Planets Past Our Galaxy
  319. Formation Of Comets
  320. Comet Orbits
  321. Swift-Tuttle Comet
  322. Halley's Comet
  323. Meteor Shower
  324. Astronomy Career
  325. Cheap Astrophotography
  326. Neutrinos
  327. Nuclear Waste In Space
  328. Telescopes with high resolution spectroscopes
  329. What happened before the Big Bang?
  330. Quantify Gravity
  331. What is the nature of dark matter?
  332. What is a 'black hole'?
  333. Graduate work in Astronomy
  334. Dark Matter and 1/rr?
  335. "Gravity Assist"
  336. Why is the universe uniform?
  337. Visualizing the equation of time
  338. Time Warp
  339. The closest star to the earth
  340. Milky Way elliptical?
  341. How far is the nearest black hole?
  342. White holes
  343. Binary Star Systems
  344. Cosmic Jet Lag
  345. Hubble and a black hole
  346. Life beyond this solar system
  347. Comets and their orbits
  348. New Planet?
  349. Why is the night so dark?
  350. Galaxy's Planets
  351. Purpose of the space program
  352. Before the Big bang
  353. Sun Speed
  354. Super Continent
  355. Red Giant Star
  356. The Swift-Tuttle Comet
  357. The Rings of Jupiter
  358. Black Hole
  359. Composition of Venus
  360. Composition of Pluto
  361. Water on Planets
  362. Uranus Data
  363. Careers in Astnomy
  364. Diamonds on Venus
  365. Io's Volcanoes
  366. Why not a spherical Milky Way?
  367. Rate Earth turns
  368. Thunder in Space
  369. Comet Shoemaker-Levy and Jupiter
  370. Cosmology as a career
  371. Outer Space Propulsion
  372. Cheap Astrophotography
  373. Stars
  374. Life on the Moon
  375. Alpha Centauri
  376. Jupiter Collision
  377. Singularity
  378. Stars in Space
  379. Water on Mars
  380. Comet reappearance
  381. Moon once part of Earth?
  382. Planetary Binary Orbits
  383. How large is a neutron star?
  384. Neutrino's?
  385. Other Life Forms
  386. Is time real or invented?
  387. Space as a reference point
  388. The Satellite "Galileo"
  389. What Makes the Sun Burn?
  390. All About Pluto
  391. Haley's Comet
  392. Travel through Jupiter
  393. Oort Clouds
  394. Blue Galaxy
  395. Mars as a Biosphere
  396. Craters
  397. Meteor Showers
  398. Nuclear Waste in Space
  399. Pleiades
  400. Between the Galaxies
  401. Motion of Sun
  402. Sound in Space
  403. Death of the Sun
  404. Black Holes in Milky Way
  405. Temperature of the sun
  406. Nearest Star to Alpha Centauri
  407. Where's the Missing Dark Matter
  408. When Universe was Created
  409. Plasma
  410. Imperfect Universe
  411. Quasars
  412. Jupiter/comet Collision
  413. Temperature Scale on H-R Diagram
  414. Feeling the Earth Turn
  415. What is a supernova?
  416. Solar Eclipse
  417. Why 2 high tides?
  418. Expanding Universe
  419. Neptune's color
  420. Composition of Comets
  421. Colorful Sunsets
  422. No Stars
  423. Seeing the Planets
  424. Black Hole Equations
  425. Aurora Borealis
  426. Moon Rise
  427. Mass of Alpha Centauri
  428. Twinkling Stars
  429. Gravity as a Force
  430. Schwarzchild Radius
  431. Smallest Planet
  432. Comet Questions
  433. Asteroids
  434. Burning Sun
  435. Turning Earth
  436. Auroras
  437. Star Cluster
  438. Magnetic Meteors and Asteroids
  439. Tipped planets
  440. Hubble Space Mission
  441. Black Hole Books or Information
  442. Neptune's orbit
  443. Neptune and Pluto Crashing
  444. Number of Stars
  445. Auroras Near the Magnetic Poles
  446. Mass-Lumonisity
  447. Stars and Constellations
  448. Farthest Constellation from the Earth
  449. Face of Mars
  450. Electromagnetic Radiation and Energy
  451. Colliding Black Holes
  452. Relation of Mass and Lifecycles for Stars
  453. Stars Bigger than the Earth
  454. Travel Speed of Planets
  455. Understanding about Uranus
  456. Finding Solar Temperature
  457. Neptune, the Blue Planet
  458. Questions about Saturn
  459. Detecting a Blackhole
  460. Red Sky
  461. Galactic Evolution
  462. Is A Solar Eclipse Safe?
  463. What Is The Biggest Known Star?
  464. Jupiter's Pearls
  465. Eyes and the Solar Eclipse
  466. Constellations
  467. Material for an artificial Venus
  468. Building a Spaceship
  469. A Dark Eclipse
  470. The Sun's Surface Temps
  471. Betelegeuse
  472. Measuring the Distances Between Planets
  473. The Name of the Moon
  474. Seeing Across the Universe
  475. Gravitons and Black Holes
  476. Rotational Speed of Earth and Moon
  477. Jupiter/Shoemaker-Levy comet
  478. Finding New Planets
  479. Variable Stars
  480. Galileo Seeing the Shoemaker-Levy Crash
  481. Latest Black Hole Information (1999)
  482. Glowing Planets
  483. Solar Eclipse on the Moon
  484. Creation of the Moon
  485. A Day On Another Planet
  486. Calculating Sun-Earth Distance
  487. Cosolar Activity and Cosmic Rays
  488. A Comet Impacts Jupiter
  489. Number of Craters for Jupiter
  490. Stationary Orbit Over the Moon
  491. Laser and comets
  492. Dark Matter Distribution
  493. Jupiter's Blemishes
  494. Earth: Round or Egg-shaped
  495. Venus' Opposite Rotation
  496. Moon Dust and Age of Moon
  497. Star Charts
  498. Neutrino mass?
  499. New Planets
  500. Earth spins
  501. Size of Sun
  502. Avoiding Pull of a Black Hole
  503. Caracol at Chichen Itza
  504. Why Rings Around Planets
  505. The End of the Universe
  506. Raw Clementine Topographic Data
  507. Planets In Other Galaxies
  508. Oxygen on Planets
  509. Teacher is Desparate for Ideas
  510. Big Bang Theory- Infinite Energy
  511. The Star Trek Question
  512. Russian MIR
  513. Temperature of Neptune
  514. Biggest Star
  515. Plant Formation
  516. Size of the Moon
  517. Seeing the Far Side of the Moon
  518. Rotation and Wobble Questions
  519. Colliding Black Holes
  520. Evolution of the Universe
  521. Burning Up On The Moon
  522. Life On Other Planets
  523. Universe Destination
  524. Composition of the Stars
  525. Archaoastnomy
  526. Floating Earth
  527. Naming the Moons
  528. Star Patterns
  529. Meteoroid Crashes In 2001
  530. Speed of Earth Through Space
  531. Stonehenge and Astronomy
  532. Largest Star
  533. Beyond Space
  534. Naming Planets and Moons
  535. Ages of Stars vs. The Universe
  536. Tachyons
  537. Cause of an Eclipse
  538. Sun Fuel
  539. Magnets on Io
  540. Does Ganymede Rotate
  541. Questions on the Rings of Saturn
  542. Earth's Rotation
  543. Brightness of Stars
  544. Types of Telescopes
  545. Galaxies and Formations
  546. Furthest Object From Earth
  547. Jupiter's New Craters
  548. Contacting Other Life Forms
  549. Stars or Sand
  550. Parallel Universe
  551. Extraterrestrial Life
  552. Old Stars
  553. Speed of Light
  554. New Planets
  555. Night and Day
  556. Planet Composition
  557. Ages of Stars and Planets
  558. Blown Up Sun
  559. Composition of Jupiter
  560. Full Moon Predictions
  561. Planets and Their Mass
  562. Tilt of Uranus
  563. Life in the New Solar System
  564. Liquid Mirror
  565. Support of the Big Bang
  566. Replace Human Species
  567. Formation on Asteroids and Planets
  568. The Future of Space Travel
  569. Rotational Speeds Effecting Earth
  570. Rotation and Weather
  571. Distance to the Big Dipper Stars
  572. Number of Stars in the Sky
  573. Size of the Stars
  574. Blue Star Questions
  575. Distance Between Pluto and the Sun
  576. Adler Planetarium
  577. Color of the Sun and Energy in a Black Hole
  578. Gold at the Center of the Earth
  579. Composition of Neptune
  580. World Stops Rotating
  581. Living on Another Planet
  582. The End of the Sun
  583. Explosions in Space
  584. Matter in Black Holes
  585. Friction in Space and on Simple Machines
  586. Making the Earth Spin
  587. Pluto's Dimensions
  588. Meteorite Travel
  589. How Telescopes Work
  590. Repairing Condensed Telescope Lens'
  591. The Moving Milky Way
  592. Chemical Make-up of the Moon's Atmosphere
  593. Distance from Sun and the Milky Way's Center
  594. Where Shooting Stars Go
  595. Why are there stars?
  596. Black Holes: gravity, strength, and more
  597. The Composition of Stars
  598. The Biggest Star
  599. Relativity Leading to a Curved Space
  600. The Colors of the Sky
  601. Microgravity Information
  602. The Number of Asteroids in our Galaxy
  603. Haley's Comet Heading to Chicago
  604. Closest Star
  605. Meteors Hitting Earth
  606. Constellation Myths
  607. Positions of stars/constellations in the Future
  608. Lunar Ellipse
  609. Eclipses and New Moons
  610. Was Descartes Moonstruck?
  611. The Sun's End Causing Distruction
  612. Size of the Universe
  613. Meteor Hitting the Earth
  614. Fill a "Black Hole"?
  615. Closest Star
  616. Plants and Water on Other Planets
  617. Biggest Comet
  618. Absolute Zero in Space
  619. How Bright Do Stars Shine
  620. Meteoroid in the Year 2001 What Makes an Eclipse?
  621. The Northern Lights
  622. The Northern Lights
  623. Earth Moon Distance
  624. Life beyond the Milky Way
  625. Radio Waves in Black Holes
  626. Big Bang Explanation
  627. Throwing Earth Out of Orbit
  628. Cyclic Time
  629. Radiation from the Sun
  630. General Info about Mars
  631. Why Other Planets Exist
  632. An Exploding Earth
  633. The Name of the Farthest Star
  634. What is a Supernova?
  635. The Sun Exploding
  636. A Map of Mars
  637. Oxygen on the Sun
  638. Why Stars Twinkle
  639. Voyager 2 and Pluto
  640. Big Crunch Theory
  641. New age of the Universe
  642. Position of the Moon
  643. Giant Red Spot on Jupiter Dissipating
  644. Why is Uranus Tipped on its Side?
  645. The Space/Time Concept
  646. The Comet's Tail
  647. Life in Space
  648. Flashing Stars
  649. Traveling to the Farthest Galaxy
  650. Bone Density In Space
  651. Effects of Floating in Space
  652. Why Does the Earth Spin?
  653. UFO's from other Planets
  654. The Number of Stars
  655. A Universe Beyond Black Holes
  656. If the Earth Stopped Rotating
  657. The Oldest Star
  658. Cosmic Ruminations
  659. Olympus Mons on Mars
  660. Antimatter in a White Hole
  661. General Information About Meteors
  662. Artificial Gravity
  663. Life and Rivers on Mars
  664. Rings Around Saturn
  665. Why do stars shine?
  666. The Next Solar Eclipse
  667. What Black and White Holes Do
  668. The Earth's End
  669. How big is a blackhole?
  670. The Sun and Stars
  671. The Size of Black Holes
  672. The Name of Halley's Comet
  673. Farthest Star from Earth
  674. Earth Acquiring the Moon
  675. Astronomy Instruments
  676. The Sun Burning Out
  677. Quasar Power
  678. Speeds in Outer Space
  679. The Cycles of Comets
  680. Coplanarity of the Solar System & Milky Way
  681. Space Survival
  682. Sound in Space
  683. Spacepacks
  684. Earth/Sun Relations: Length of day
  685. Fire on the Sun
  686. Determining the Galaxy's Size
  687. Length on Halley's Tail
  688. Meteors and the Earth
  689. Status of Galileo Probe
  690. Color of Space, Fuel in a Rocket
  691. Weight on Pluto, Fuel to get to Pluto
  692. Hubble Space Telescope
  693. Reaching Another Star
  694. How black are black holes?
  695. Atmosphere burn up?
  696. Time Travel
  697. How Stars Stay in the Sky
  698. Lenth of a Day on Mars
  699. Habitable Planets with Two Suns
  700. What is a Red Shift?
  701. The Coriolis Effect and Drains
  702. Anthropogenic Heavenly Body
  703. Surface temperture of Neptune
  704. Zeta Reticuli?
  705. Kosmophilosophia
  706. The Red Shift
  707. Zubeneschamali
  708. Are Black Holes True?
  709. Fate and Origin of Universe
  710. Universal structure
  711. Solar Wind
  712. Kind of Telescope
  713. The Spinning Moon
  714. Where is the Biggest Telescope?
  715. Quasars
  716. NASA Flight Directior
  717. Why is space cold?
  718. A Round Earth
  719. Things Needed to Live on Mars
  720. Speed of Stars
  721. Wormholes
  722. Planetary Rings
  723. Creation of the Universe
  724. Jupiter in December of 1995
  725. Multiple Big Bangs
  726. Space Travel to Next Star
  727. Shimmering Stars and Planets
  728. 51-Pegasi
  729. Earth's Rotation
  730. Outer Space...Kenetic Energy
  731. Why Find Life On Other Planets?
  732. Content of Black Holes
  733. Man on Mars
  734. Color of theSun
  735. Colors of the Sunrise
  736. Discovering Other Solar Systems
  737. Sun and Planets Crashing
  738. Getting Started With Telescopes
  739. The Earth And Asteroids
  740. Meteors Distroying Earth
  741. Mercury's Atmosphere
  742. Earth's Rotation / Revolution
  743. Comet's Tail
  744. Old Light
  745. Water on the Sun
  746. Dual Space
  747. Solar Radiation on Earth
  748. Earth is Moving Proof
  749. Universe and Life
  750. Universal Rotation
  751. 10th Planet Proof
  752. Sun's Position
  753. Comet and Tail Melting
  754. Luminosity and Sunlight
  755. Planetary Rotation
  756. Phases in Space
  757. Temperature in Space
  758. Moon Crater Shapes
  759. Moon Appearances
  760. Copernican Mistake?
  761. Earth-Moon relationship
  762. Light Minute
  763. Carbon Dioxide and Mars
  764. Gravity and Planet Alignments
  765. Earth - Sun Measurement
  766. Space Craft Orientation
  767. 3-D Pictures
  768. Open and Closed Universes
  769. Mars' Ionosphere
  770. Event Horizon
  771. Weight on the Moon
  772. Carbon in Space
  773. Sun as a Double Star
  774. Humans vs. The Sun
  775. Solar Mass Loss
  776. Solar Orbit in Galaxy
  777. Moon Distance
  778. Black Hole General Information
  779. Oort Comet Cloud
  780. Mars and Humidity
  781. Falling stars
  782. Solar Eclipses
  783. Halley's Comet Status
  784. Halley's Comet Return
  785. Planetary Gasses
  786. Universal Motion
  787. Astronomy Information
  788. Setting Sun
  789. Slowing Earth
  790. Sirus
  791. Planet Classifications
  792. Moon's Atmosphere
  793. Moon's Distance and Gravity
  794. Earth's Rotation and Gravity
  795. Bending Light
  796. Solstices, Aphelion and Perihelion
  797. Cyclic Patterns and the Solar System
  798. Orbital Time
  799. Telescope Invaders
  800. Earth's Rotation
  801. Comet Tails
  802. Space Degrees
  803. Sun's Position
  804. Comet Tails
  805. Gas planets
  806. Yellow Sun
  807. Measurement in Space
  808. Moon's Orbit and Rotation
  809. Space Measurement
  810. Earth-Moon System
  811. Sun's History
  812. Earth Tilt = 0 Degrees
  813. Space Waves
  814. Moon During the Day
  815. Calculating Tilt
  816. Planet X
  817. Lunar Erosion
  818. Sun Rise and Sun Set
  819. Asteriod Hitting Earth
  820. Betelgeuse
  821. Moon's Weight
  822. Northern Lights
  823. Super Nova and Safety
  824. Moon During the Day
  825. Determining Star Temperatures
  826. Star Charts
  827. Aphelion and Perihelion Distances
  828. Expanding Universe
  829. Dark Matter
  830. Jupiter and Saturn Surface
  831. Comet's Tail and Solar Wind
  832. Will The Earth Stop Rotating?
  833. Lunar Orbit to Ecliptic
  834. Closest Star
  835. Super Continent
  836. Diamonds on Venus
  837. Alpha Centauri
  838. Stars in Space
  839. All About Pluto
  840. Schwarzchild Radius
  841. Colliding Black Holes
  842. Stars Bigger than the Earth
  843. The Name of the Moon
  844. Speed of Earth Through Space
  845. Brightness of Stars
  846. Why is Space Dark?
  847. Meteor vs. Bolide
  848. Meteorites and Earth Mass
  849. Revolution of Earth Direction
  850. Local Noon
  851. Flat Universe
  852. Orbital Path of Moon
  853. Red Shift
  854. Earth Spindown
  855. Planets from Stars
  856. Voyager's Messages
  857. Sirius
  858. Size of Solar System
  859. Earth-Moon Center of Gravity
  860. Star Expansion Rate
  861. Other Universes
  862. Meteors
  863. Water on Mars
  864. Equal Day/Night Everywhere
  865. Largest Star
  866. Ecliptic, Rotate and Revolve
  867. Gravity and Orbits
  868. Earth Spindown and Orbit
  869. No Sun At Night
  870. Twilight Calculations
  871. Lethal Astronomical Occurrences
  872. Variable Daylight Loss
  873. Daylight Length
  874. Planet Focii Locations
  875. Earth's Sunshine Percentage
  876. Why Sunset?
  877. Dawe's Limit
  878. Sidereal Day
  879. Diameter of Universe
  880. Mercury's Day and Year
  881. How is Space Infinite
  882. Solar Size vs Time
  883. Light and Dark in Space
  884. Constellation Size
  885. Naming Planets
  886. Dual Axis Orbital Motion
  887. Totally Liquid Planet
  888. The Concept of "Noon"
  889. Visibility of Moons From Jupiter
  890. Space is Dark
  891. Hypernova
  892. Gallactic Collisions
  893. Solar Temperature Last Century
  894. Earth's Moon and Artificial Satellite Orbits
  895. Saturn's Gasses and Shape
  896. Core Temperature of Sun
  897. Language Root of Star
  898. 23 Hours 25 Minutes
  899. Extrasolar Planet
  900. Moon and Asteroid Shapes
  901. Path Shape of Venus Over Time
  902. Orbital Path Shapes
  903. Teaching Earth-Sun Measurement
  904. Orbits and Orbiting Planes
  905. Planetary Atmosphere Composition
  906. Titan's Mud Surface
  907. Cosmology
  908. Naked Eye Star Population
  909. Biggest Asteroid Collision With Earth
  910. Non-circular Orbits
  911. Escaping Black Holes
  912. Perihelion, Aphelion, and Seasons
  913. Stellar Processes - Hydrogen-Helium
  914. Inflation and Cosmology
  915. Stellar Composition Determination
  916. Planet Determination
  917. Later Stages of Solar Evolution
  918. Stars and Color
  919. Lunar Appearance by Hemisphere
  920. Solar Brightness on Moon Compared to Earth
  921. Lunar Orbital Distance Change
  922. Equation of Time
  923. Solar Wind Current
  924. Sine Track Depicting Satellite Orbits
  925. Super Nova Images
  926. Sending Extraterrestrial Messages
  927. Elliptical Orbit, Tilt, and Seasons
  928. Finding the Azimuth
  929. Planet Earth Only One With Life
  930. Rotational Axis Orientation of Planets
  931. Barred Spiral Galaxy and Rotation
  932. Orbits, Universe Expansion, Center
  933. Six Month Day, Night at Poles
  934. Stellar Population
  935. Continuous Solar Spectra
  936. Milky Way Photos
  937. Viewing Shooting Stars
  938. Celestial Night during the Year
  939. Lunar and Earth Curvature of Horizon
  940. Origin of 360 Degrees and 365 Days
  941. Visually Observing Lunar Rotation
  942. Sidereal Day
  943. Feeling Earth Spin
  944. End, Other Side of Universe
  945. Big Bang and Symmetry
  946. Importance of Star Position Measurement
  947. Lunar Eclipse Frequencies
  948. Planet Existence
  949. Planetary Eccentricity
  950. Jupiter as a Star?
  951. Number of Stars in the Universe
  952. Comets, Ice, and Vacuum of Space
  953. Moon Appearing Retrograde
  954. Time For Planetary Aggregation
  955. Visually Observing Lunar Rotation
  956. Planetary "Slingshot" Flybys
  957. Are Black Holes, Stars
  958. Scaling of Universe
  959. Solar Orbital Parameters
  960. SETI
  961. Galactic Collision Outcomes
  962. Earth's Atmospheric Thickness at Tangent
  963. Farthest Object in Universe
  964. Pluto No Longer a Planet
  965. Lunar Spin Down and Orbit
  966. Determining Stellar Distances
  967. Distance of Common Stars
  968. Shrinking Sun
  969. Shadows of Stars
  970. Distance to Full Moon
  971. Supernova Frequency
  972. Lunar Phase and Location
  973. Earth-Moon Distance Increasing
  974. Gravitational Compression and Ice
  975. Solar Color
  976. Galactic Distributions
  977. Credit for Axis Tilt and Seasons Discovery
  978. Earth's Speed From Big Bang
  979. Time To Uranus, Average Spacecraft Speed
  980. Planet Requirements
  981. Hubble Telescope Image Colors
  982. Comet Gravity and Temperature
  983. Meteor vs. Crater and Ray Size
  984. Cold Universe
  985. Deep Space Darkness
  986. Current Position of Celestial Bodies
  987. Red-Orange Moonrise
  988. Constellation Our Sun Resides
  989. Early Light, Galaxies, and Big Bang
  990. Shadow Length Change
  991. Degrading Orbits and Lunar Orbit Increase
  992. Simultaneous Star Sightings
  993. Solar Position at Sunrise
  994. Shape of Universe
  995. Moon Size Activities
  996. Multi-colored Stars
  997. Age versus Size of Universe
  998. Solar Corona Temperature
  999. Day Length Differences Throughout Year
  1000. Age of Edge of Universe
  1001. Gravitational Lock
  1002. Direction of Sun Relative to Moon
  1003. Microwave Background and Milky Way Motion
  1004. Exploding Planets
  1005. Origin of Black Hole Term
  1006. Why Are There Stars?
  1007. Determining Stellar Ages
  1008. Measuring Planetary Masses
  1009. Observable Limit of Universe
  1010. Speed of Light; Age of Universe
  1011. Why Planets Wobble
  1012. First Earth-Sun Measurer
  1013. Universe Expansion and Limits
  1014. Rate of Change of Day Length
  1015. Solar Mass Balance
  1016. Solstice Terms, Southern Hemisphere
  1017. Comet Orbit Direction
  1018. Asteroid Belt Shepherding
  1019. First to State Propulsion in Space
  1020. Chemical Abundances, Time, our Sun
  1021. Earthshine, Darker Lunar Disk
  1022. Gravitational Attraction, Galactic Expansion
  1023. Life and Gas Giants
  1024. Plotting Orbits of Planets
  1025. Historical Earth Orbit
  1026. Distances Between Planets
  1027. Comet Vaporization Distance
  1028. Galactic Center Brightness
  1029. Expanding Universe and Galactic Collisions
  1030. Cause for Oblate Spheroid
  1031. Other Universes
  1032. Evidence for Earth Orbit about Sun
  1033. Planetary Population Estimate for Universe
  1034. Stars per Unit Dime at Arm's Length
  1035. Solar Cycle of 11 versus 22 Years
  1036. Lack of New Star Appearances
  1037. Measuring Stellar Luminosity
  1038. Tips of Crescent Moon and South
  1039. Absolute Time and Existence of Visible Stars
  1040. Virgo Cluster and Universe Expansion
  1041. Lunar Horns and Latitude
  1042. Measuring Surface and Calculating Core Temperature of Stars
  1043. Repetition of Lunar Position
  1044. Origin of Asteroid
  1045. 45P/Honda-Mrkos-Pajdusakova Comet
  1046. Comet Impact Speed on Earth
  1047. Big Crunch
  1048. Cometary Temperature
  1049. Solar Pole Star
  1050. Horned Star
  1051. Daily Latitude of Equinox
  1052. Sun Chasing
  1053. Receding Moon and Lunar Origin
  1054. Saturn, Methane, and Explosions
  1055. Orbital Plane Definition
  1056. Circular and Elliptical Orbit Common Points
  1057. Nitrogen-Oxygen Gas Giant
  1058. Size of Universe and Speed of Light
  1059. Importance of Sunspot Study
  1060. Uranus Rotational Tilt
  1061. Determining Solar Age
  1062. Measuring Orbit About Galactic Center
  1063. Earth Annual Mass Change
  1064. Jupiter Scars from Comet Collision
  1065. Naming Stars
  1066. Nearest Star Moving Toward Earth
  1067. Galactic Census Methods
  1068. With Dust, Why Do We See Stars
  1069. Comet Tail Myths
  1070. Determining the Composition Layers of Planets
  1071. Age versus Size of Universe
  1072. Incomplete Galaxies at Edge of Universe
  1073. Criteria for Magnetosphere
  1074. Earth Sidereal Year and NEO
  1075. Rocky Planet and Rings
  1076. Singularity Size
  1077. Naked Eye Star Colors
  1078. Sky Orientation by Latitude
  1079. Microwaves and Radio Astronomy
  1080. Eclipse Duration
  1081. Distribution of Meteor Hits
  1082. Precession, Seasons, and Tropics
  1083. Changing Rate of Change of Daylight
  1084. Planet Formation Before Solar Formationt
  1085. Seeing Earliest Galaxies, Speed of Light, Distance
  1086. Lunar Angular Size
  1087. Lunar Synchronous Orbit
  1088. Seeing Earliest Galaxies, Speed of Light, Distance
  1089. Simultaneous Planet and Sun Formation Evidence
  1090. Expanding Universe: From Where?
  1091. Earth versus Galactic Orbital Planes
  1092. Simultaneous Planet and Sun Formation Evidence
  1093. Possible Green Planets
  1094. Instrument for Locating Meteorites
  1095. Change of Moon Height by Season
  1096. Determining Solar Age
  1097. Number of Galaxies and Expansion
  1098. Red Shift and Expanding Universe
  1099. Telescope Viewing
  1100. One Planet, Two Suns, Orbital Path
  1101. Extrasolar Planet Composition
  1102. Blue Giants
  1103. Earth Shadow Direction on Lunar Eclipse
  1104. Solar Eclipse and Body With Atmosphere
  1105. Analemma by Shadow
  1106. Stellar Motion Reference Point
  1107. Census of Colinear Line of Site Galaxies
  1108. Stellar Motion Reference Point
  1109. Big Bang Duration; Mass of Universe
  1110. Lunar Bisector and Direction of Sun
  1111. Planet Mass and Moon Population
  1112. Jump Height on Moon
  1113. Stellar Motion Reference Point
  1114. Transit of Venus and Earth-Sun Distance
  1115. Jupiter and Venus Conjunction
  1116. Planet Formation and Material Abundance
  1117. Jump Height on Moon
  1118. Daily Meteor Impact Census
  1119. Varying Size of Full Moon
  1120. Meteor Size Detection Limit
  1121. Insolation as Percent of Total Solar Output
  1122. Observable Universe
  1123. Cosmic Ray Background Frequency
  1124. Lone Stars and Galactic Boundaries
  1125. Transit of Venus and Distance Measure
  1126. Dark Energy and Other Dimensions
  1127. Expansion and Inflation of Universe
  1128. Galactic Velocities, Falling Toward Black Hole
  1129. Solar Ionosphere
  1130. Perturbation Sources, Orbits
  1131. Interest in Exoplanetary Systems
  1132. Pleiades, Merope, and Variability
  1133. Insolation as Percent of Total Solar Output
  1134. Photon Blue Shift in Gravitational Field
  1135. Determining Orbital Radius and Capture
  1136. Hubble, Arrow of Time, and Entropy
  1137. Why Ecliptic Plane?
  1138. Measuring the Size of the Universe
  1139. Galactic Velocities, Falling Toward Black Hole
  1140. Venus Surface Temperature and Greenhouse Effect
  1141. Uneven Distribution of Nova Debris
  1142. Universal Coordinate System
  1143. Stellar Collision Outcomes
  1144. Galactic Black Holes and Consuming Rest of Galaxy
  1145. Earth Forming Supernova Remnant
  1146. Galaxies Traveling Toward Darkness?
  1147. Measuring Axis Inclination
  1148. NGC 1277 Size
  1149. Big Bang and Black Holes
  1150. Black Holes: Pull In or Orbit
  1151. Constellations and Losing a Star
  1152. Stellar Core Composition and Nova
  1153. Black Holes: Pull In or Orbit
  1154. Expanding Universe, Acceleration, Model
  1155. Transit of Venus and Orbital Speed
  1156. Arc Second and Applications
  1157. Multiple Big Bang Sources
  1158. Time of Sunset, Sunrise, Shortest Day
  1159. Determining Stellar Populations
  1160. Color Astronomy Photos
  1161. Shadow near Tropic
  1162. Causes of Meteor Explosion
  1163. Interest in Accurate Star Positions
  1164. Size of Meteor Strike to Effect World
  1165. Center of Universe
  1166. Interest in Accurate Star Positions
  1167. Crescent Moon Orientation
  1168. Long-term Day-length Calculation
  1169. Universe as a Superposition of Quantum States
  1170. Water From Comet in Jupiter's Atmosphere
  1171. Deep Space Navigation
  1172. Detecting Counter Earth
  1173. Number of Stars
  1174. Water on Earth, Not Other Planets
  1175. Uniformity of the Big Bang and Lumpiness of Galaxies
  1176. Moon Below Aircraft
  1177. Exploding versus Diverting Asteroids Aimed at Earth
  1178. Mass of Kuiper Belt
  1179. Dark Matter and Black Hole Correlation
  1180. Trajectory of Coronal Mass Ejecta
  1181. Galactic Motion and Speed of Light
  1182. Sonic Boom and Big Bang
  1183. Exoplanet Living
  1184. Axis Orientation and Orbit of Uranus
  1185. Multiverse Depictions
  1186. Water Layer Around Rocky Core of Jovians
  1187. Lowest Density in Universe
  1188. Tidal Forces and Saturn's Rings
  1189. Solar Flares and Lunar Intensity
  1190. Temperature of Mercury and Comets
  1191. Blood Moons
  1192. Planetary Discoveries Applied to Earth
  1193. Size Limit of Universe
  1194. Synchronous Orbit and Rotation
  1195. Synchronous Orbit and Rotation

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