A new image taken recently by the NASA/ESA Hubble Space Telescope captured a faint and wispy shell of gas in the constellation of Canis Major. This Hubble image shows a few of the tenuous threads that comprise Sh2-308. Image credit: NASA / ESA / Hubble. The object in question, called Sh2-308, is approximately 5,200 light-years from Earth. Sh2-308 is a bubble-like structure wrapped around a type of star known as a Wolf-Rayet star (this particular star...
