Why does Haley's comet make an elliptical orbit around the sun? Why
does the comet not fly into space?
Explain the type of gravitational field that controls this comet?
The kind of gravity that attracts the comet to the sun
is exactly the sam e as we experience here on earth. The way
we can know that is because the orbit is so close to being an
ellipse. Newton's discovery was that for gravity the orbits
of objects that cannot escape are either circles or ellipses.