4
POPSMore Evidence For Water On Mars What I can't understand is that: Two craters in the southern hemisphere that were originally photographed in 1999 and 2001 were examined again in 2004 and 2005, and the images yielded changes consistent with water flowing down the crater walls, according to the study...
7
POPSBeautiful! A picture of the Stellar Spire in the Eagle Nebula is taken by the ACS and released with a series of images celebrating the Hubble's 15th anniversary. This image is of such high resolution that it could be blown up to billboard size and still offer exceptional detail. Credit: NASA, ESA, and The Hubble Heritage Team