Refurbished Hubble Space Telescope returns new images
September 9, 2009 | 6 comments CLICK TO ENLARGE + NASA, ESA, and the Hubble SM4 ERO Team The Butterfly nebula, formally designated NGC 6302, is a planetary nebula roughly 3,800 light-years from the sun. The term planetary nebula is something of a misnomer, which arises from the fact that they are often round…
Read more
