NASA's Hubble Confirms That Galaxies Are The Ultimate Recyclers
Thursday, November 17, 2011 - 14:50
in Astronomy & Space
New observations by NASA's Hubble Space Telescope are expanding astronomers' understanding of the ways in which galaxies continuously recycle immense volumes of hydrogen gas and heavy elements to build successive generations of stars stretching over billions of years. This ongoing recycling keeps galaxies from emptying their "fuel tanks" and stretches their star-forming epoch to over 10 billion years.