When you think of outer space, you're likely picturing stars, planets and moons. But much of space is filled with clouds of gas, plasma and stardust—known as interstellar clouds.

A study of supernova remnant SNR 0519-69.0 using the Chandra X-ray telescope, Hubble and more has narrowed down its age to ...

For centuries, scientists have studied supernovae mostly after the damage was already done, looking at remnants long after ...

New cosmology studies suggest the universe may not be perfectly uniform, potentially challenging long-standing assumptions ...