Browse Archive
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Galaxy Cluster Smashes Distance Record
The most distant galaxy cluster yet has been discovered -- about 10.2 billion light years away.
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Trigger-Happy Star Formation
A new study from two of NASA's Great Observatories provides fresh insight into how some stars are born.
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NASA Celebrates Chandra's 10th Anniversary
Ten years ago, NASA's Chandra X-ray Observatory was launched aboard the space shuttle Columbia and deployed into orbit.
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Galaxies Coming of Age in Cosmic Blobs
The "coming of age" of galaxies and black holes has been pinpointed thanks to new data from Chandra.
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'Ghost' Remains After Black Hole Eruption
NASA's Chandra X-ray Observatory has found a cosmic "ghost" lurking around a distant supermassive black hole.
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A Cosmic Free-for-All
The most crowded collision of galaxy clusters has been identified by three different telescopes.
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Erratic Black Hole Regulates Itself
Chandra examines black holes that may have a mechanism to control their growth rate.
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Geriatric Pulsar Still Kicking
Chandra finds that ancient pulsar PSR J0108-1431 still has plenty of energy to spare.
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Celebrating the International Year of Astronomy
NASA's Great Observatories are celebrating the International Year of Astronomy.
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Cassiopeia A Comes Alive
Two new efforts have taken a famous supernova remnant from the static to the dynamic.
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Dark Energy Stifles Growth in Universe
Astronomers have clearly seen the effects of dark energy on the most massive collapsed objects in the Universe.
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Searching for Primordial Antimatter
Scientists hunt for evidence of antimatter -- matter's arch nemesis -- left over from the very early Universe.
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Powerful Supernova Caught by Web
One of the nearest supernovas in the last 25 years has been identified over a decade after it exploded.
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A Clash of Clusters
A powerful collision of galaxy clusters is seen by Chandra and Hubble.
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A New Way to Weigh Giant Black Holes
How do you weigh the biggest black holes in the universe? One answer can be found with data from NASA's Chandra X-ray Observatory.
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Black Holes Have Simple Feeding Habits
The biggest black holes may feed just like the smallest ones, according to data from NASA's Chandra X-ray Observatory.
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Chandra Uncovers Youngest Supernova in Our Galaxy
At a mere 140 years old, supernova remnant G1.9+0.3 is the youngest in the Milky Way galaxy.
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Oldest Known Objects Are Surprisingly Immature
A new study using Chandra X-ray Observatory data shows globular clusters might be surprisingly less mature than previously thought.
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Action Replay of Powerful Stellar Explosion
Using Chandra data, astronomers have made the best ever determination of the power of a supernova explosion that was visible from Earth long ago.
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Possible Progenitor of Special Supernova?
With help from Chandra, scientists may have detected a binary star system destroyed in a supernova explosion.