NGC 7963 (Bubble Nebula) PopGrip t-shirt The nebula was first discovered

The nebula was first discovered by Sir John Herschel in 1834

massive new stars are emerging

with a brightness that changes by a factor of 750 every year and three weeks

It is a composite of three exposures in different wavebands

It's tiny rover

NGC 7963 (Bubble Nebula) PopGrip t-shirt The nebula was first discoveredFor the 26th birthday of NASA's Hubble Space Telescope, astronomer highlighter a Hubble image of an enormous bubble being blown into space by a super hot, massive star. The Hubble image of the Bubble Nebula, or NGC 7635, was chosen to mark the 26th anniversary of the launch of Hubble into Earth orbit by the STS 31 space shuttle crew on April 24, 1990. "As Hubble makes its 26th revolution around our home star, the sun, we celebrate the event with a