Astronomers use many different pieces of equipment to study space: optical telescopes on earth, space telescopes, and space probes are a few. why would astronomers use a space probe instead of a telescope?
a) probes send back much better images than telescope.
b) probes are travel through space faster than light.
c) probes can take scientists to other planets; telescopes cannot.
eliminate
d) probes send data back to earth for scientists to study, not just images.