The Bubble Nebula is the result of hot gas which is escaping into space from a star 45 times more massive than our Sun. Hubble captured this balloon-like sphere of gas being blown into space by a super-hot, massive star. The bubble is 7 light-years across, which is one-and-a-half times greater than the distance from the Sun to our nearest stellar neighbor, Alpha Centauri. The Bubble Nebula lies in the constellation Cassiopeia, approximately 7,100 light-years from Earth. A portion of every Posternauts purchase supports young minds through the scholarship fund of the U.S. Space & Rocket Center® Foundation. Learn More Object Name: Bubble Nebula, NGC 7635 Release Date: Apr 20, 2016 Image Credits: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)
