Behind this galaxy’s calm facade lies the fingerprint of a long-dead giant star. A violent supernova once rocked its ...

The US space agency has discovered a mysterious object which is sending signals to Earth every 44 minutes. Located about ...

supernova distance, and gravitational lensing properties yield a value for the Hubble constant or H0 (pronounced H-naught)." NASA describes the Hubble constant as the number that characterizes the ...

Using cutting-edge theoretical models and data from NASA's Chandra X-ray Observatory ... educators and the visually impaired to feel the shape of a supernova remnant or hold a black hole's ...

Astronomers have discovered a mysterious new object in our Milky Way, which is emitting X-rays and radio waves at the same ...

Scientists targeted a light echo previously observed by NASA’s retired Spitzer Space Telescope, and it is one of dozens found near remains of the Cassiopeia A supernova. The Webb images show ...

The most recent nearby supernova, SN 1987A, was in the Large Magellanic Cloud. The Milky Way’s youngest known supernova is ...

Patchick spotted a nebula near the original site of the supernova while sifting through images taken by NASA’s now-retired Wide-field Infrared Survey Explorer mission. Albert Zijlstra ...

Astronomers at the University of Hawaii uncovered black hole events so packed with energy, they were the biggest explosions ...

A supernova is the final ... remains intact and the cycle triggering another explosion starts over, which NASA says can take tens, hundreds or even thousands of years. In T Coronae Borealis ...

Astronomers have discovered a strange new object in our Milky Way galaxy. The celestial object is emitting X-rays around the ...

For the past quarter-century, NASA’s Chandra X-ray Observatory has been recording the roiling aftermath of two mighty supernova explosions that occurred hundreds of years ago, far out in space.