Astronomers using NASA’s IXPE satellite have finally cracked a cosmic mystery—how X-rays are produced in the energetic jets ...

Have you ever had an X-ray taken of your bones? Well, so has the Milky Way. NASA's Chandra X-ray Observatory regularly images ...

Astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes thanks to data from NASA's NICER (Neutron star Interior Composition Explorer) and other missions.

The Hubble Space Telescope has been used to determine the mass of white dwarf star LAWD 37. It is "56 percent the mass of our ...

Astronomers are once again getting excited about a rare nova that could appear in the night sky anytime from now into the ...

A beautiful but skewed spiral galaxy dazzles in this NASA/ESA Hubble Space Telescope image. The galaxy, called Arp 184 or NGC ...

The assailant, seen right at the point of the break, could be a fast-spinning neutron star, known as a pulsar. Scientists ...

To celebrate the Hubble telescope's 35th anniversary, NASA released some striking new images on Wednesday, including a bold rendition of Mars and a stunning photo of a moth-shaped nebula with a white ...

The youngest known planetary nebula, formed by a star rapidly evolving into a white dwarf, expelling gas and dust into space. A supernova remnant, this nebula is the result of a massive star ...

This region known as Ambartsumian’s Knot is a tidal dwarf ... and various stars are speckled among the black background of space surrounding the galaxy. CREDIT: ESA/Hubble & NASA, K.

Scientists have been left baffled after spotting a lone black hole drifting through the Milky Way, without any orbiting stars. Although this black hole is seven times more massive than our sun ...