Although we now do that quite frequently, the supernova needs to be closer than any we have seen for decades, and we have to have a gamma-ray telescope pointing in the right direction when it happens.

A picturesque galaxy 40 million light-years away, NGC 5530 dazzles with its patchy spiral arms in the constellation Lupus.

This NASA/ESA Hubble Space Telescope image features a sparkling spiral galaxy paired with a prominent star, both in the ...

A celestial light show illuminates a distant spiral galaxy, where a hidden supernova briefly outshines its stellar neighbors in a new image from the Hubble Space Telescope. The galaxy, called NGC ...