"<strong>January 6:</strong> NASA releases a stunning new image of the so-called <a href=""http://www.cnn.com/2015/01/06/tech/nasa-pillars-creation/index.html"" target=""_blank"">Pillars of Creation,</a> one of the space agency's most iconic discoveries. The giant columns of cold gas, in a small region of the Eagle Nebula, were popularized by a similar image taken by the <a href=""http://www.cnn.com/2015/04/19/photos/cnnphotos-hubble-space-telescope-25th-anniversary/"" target=""_blank"">Hubble Space Telescope</a> in 1995. <a href=""http://www.cnn.com/2014/01/10/tech/gallery/wonders-of-the-universe/index.html"" target=""_blank"">See other wonders of the universe</a>"