2.the hubble space telescope was sent into space in 1990. but the first pictures it sent back to earth weren't as clear as they should have been. there was something wrong
with the telescope. in 1993 a team of astronauts was sent to fix the telescope, and
scientists started getting the spectacular pictures they had been waiting for. telescopes here on earth can't get very clear pictures of objects in space because the earth's atmosphere makes the pictures unclear. a telescope in space doesn't have that problem. the hubble space telescope can take pictures that are ten times clearer than any taken on earth