Could there be a bigger bubble?

The Bubble Nebula is 7 light-years across – about one-and-a-half times the distance from our sun to its nearest stellar neighbor, Alpha Centauri – and resides 7,100 light-years from Earth in the constellation Cassiopeia.  The Bubble Nebula was discovered in 1787 by William Herschel.

(1) Go to NASA’s History about Bubble Nebula. (2) Learn about the Hubble Team.
(3) UNBELIEVABLE: “Gas on the star gets so hot that it escapes away into space as a “stellar wind” moving at over 4 million miles per hour.” Of course, light travels the fastest.

###