Meteorites are valuable to astronomers because:
A) they may provide evidence about the process in which the solar system was born.
B) they originated in other solar systems.
C) they contain diamonds and gold.
D) they reveal the contents of interstellar space.
E) they prove that life can only exist on the Earth.
Question 2
Is there evidence of life on Mars?
A) Yes, at least at the time the Allen Hills Meteorite was formed, since it has fossils.
B) Yes, but it is only in the form of microbes found by Viking landers.
C) Yes, just found as fossils in the sedimentary rocks examined by Spirit.
D) No, nothing suggesting life has ever been discovered.
E) We have confusing and uncertain results to date.