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M82 is 12 million light-years away meaning the supernova explosion happened 12 million years ago. I love how thinking about that does for my brain.
Wow! Now here’s a supernova bright enough for even small telescope observers to see. And it’s in a bright galaxy in Ursa Major well placed for viewing during evening hours in the northern hemisphere. Doesn’t get much better than that! The new object was discovered last night by S.J. Fossey; news of the outburst first&
If Andromeda were brighter, this is how it would look in our night sky.
They’re all out there, we just can’t see themDistance to Earth: 2,538,000 light years
Astronaut readjusts to life back on Earth
> Don’t give him a baby for a while.
Comet ISON’s closest approach to the Sun, imaged by the STEREO Ahead spacecraft on November 28th, 2013.