Chandra and XMM-Newton provide direct measurement of distant black hole's spin

Astronomers have used NASA's Chandra X-ray Observatory and the European Space Agency's (ESA's) XMM-Newton to show a supermassive black hole six billion light years from Earth is spinning extremely rapidly. This first direct measurement of the spin of such a distant black hole is an important advance for understanding how black holes grow over time.

Extreme power of black hole revealed

Astronomers have used NASA's Chandra X-ray Observatory and a suite of other telescopes to reveal one of the most powerful black holes known. The black hole has created enormous structures in the hot gas surrounding it and prevented trillions of stars from forming.

NASA's Chandra helps confirm evidence of jet in Milky Way's black hole

Astronomers have long sought strong evidence that Sagittarius A* (Sgr A*), the supermassive black hole at the center of the Milky Way, is producing a jet of high-energy particles. Finally they have found it, in new results from NASA's Chandra X-ray Observatory and the National Science Foundation's Very Large Array (VLA) radio telescope.

NASA's Hubble and Chandra find evidence for densest nearby galaxy

Astronomers using NASA's Hubble Space Telescope and Chandra X-ray Observatory and telescopes on the ground may have found the most crowded galaxy in our part of the universe.

NASA's Chandra sees eclipsing planet in X-rays for first time

For the first time since exoplanets, or planets around stars other than the sun, were discovered almost 20 years ago, X-ray observations have detected an exoplanet passing in front of its parent star.

Exploring a hidden population of exotic neutron stars

Magnetars – the dense remains of dead stars that erupt sporadically with bursts of high-energy radiation - are some of the most extreme objects known in the Universe.

Chandra explores a giant gas cloud in system NGC 6240

Astronomers at NASA have used the Chandra X-Ray Observatory to conduct a detailed study of an enormous cloud of hot gas enveloping two large, colliding galaxies.

Rare explosion may have created Milky Way's youngest black hole

New data from NASA's Chandra X-ray Observatory indicates that a highly distorted supernova remnant may contain the most recent black hole formed in our Milky Way galaxy.

Super-hot gas halo surrounds our galaxy

Our Milky Way Galaxy is surrounded by an enormous halo of hot gas hundreds of thousands of light years across, and with as much mass as all the stars in the galaxy.

Black hole emits massive X-ray burst

A population of old, volatile stellar black holes has been discovered, following an 'extraordinary outburst' from one located in a nearby galaxy.

20 million mph winds seen blowing from black hole

A black hole discovered by NASA's Chandra X-ray Observatory is generating winds blowing at 20 million miles per hour - about three percent of the speed of light.

Milky Way's black hole seen vaporizing asteroids

The supermassive black hole known as Sagittarius A has been observed emitting X-ray flares, lasting a few hours, about once a day.

Colliding galaxies create 'the fat one'

Astronomers say they've detected the largest galaxy yet seen in the distant universe, more than seven billion light years from Earth.

Black holes have existed since the dawn of time

In an X-ray image looking further into the past than ever before, NASA astronomers have discovered that massive black holes were common in the early universe and grew much more aggressively than previously thought.

Bizarre cosmic explosion observed

Astronomers are poring over data from what they say is one of the most puzzling cosmic blasts ever observed.

Supernova observations may explain cosmic rays

Move over CERN: a pattern of X-ray 'stripes' in the remains of a supernova may provide the first direct evidence that supernovae can accelerate particles to energies a hundred times higher than the Large Ladron Collider.

Neutron star has superfluid at its core

NASA's Chandra X-ray Observatory has for the first time discovered a superfluid - a weird, friction-free state of matter - at the core of a neutron star.

Study gives clues to future of Milky Way's central black hole

A new study from NASA's Chandra X-ray Observatory could tell us more about how black holes are created - and about the future of the black hole at the heart of our own galaxy.

NASA sees birth of black hole

NASA's Chandra telescope has found evidence of the youngest black hole in our area of the universe - just 30 years old at the point of observation.

Cannibal star discovered

An astronomer says he's caught a star in the act of chewing up a companion and spitting out a second generation of exoplanets.