"X-ray observations made by the Suzaku observatory provide the clearest picture to date of the size, mass and chemical content of a nearby cluster of galaxies. The study also provides the first direct evidence that million-degree gas clouds are tightly gathered in the cluster's outskirts."
"A galactic `super-volcano' in the massive galaxy M87 is erupting and blasting gas outwards, as witnessed by NASA's Chandra X-ray Observatory and NSF's Very Large Array. The cosmic volcano is being driven by a giant black hole in the galaxy's center and preventing hundreds of millions of new stars from forming."
Galactic Super-volcano in Action (Chandra press room, NASA HQ, Science Daily)
Watch a Galactic Super-Volcano 50 Million Light Years Away (CBS News)
Spectacular 'galactic super volcano explosion' captured by Nasa telescope (Daily Telegraph)
Cosmic Volcano Erupting in M87 (Universe Today)
Galactic Volcano Erupts in M87 (Wired)
"Two new and independent studies have put Einstein's General Theory of Relativity to the test like never before. These results, made using NASA's Chandra X-ray Observatory, show Einstein's theory is still the best game in town."
Press release (Chandra press room, NASA HQ,
Einstein's Theory Fights off Challengers (Astronomy.com, Space Daily, Science Daily)
Einstein (Still) Rules The Universe (SPACE.com)
Einstein's theory passes tough test (ZME Science)
Chandra Proving Einstein's General Theory of Relativity (redOrbit)
Updating Einstein's Universe: Galaxies cluster in Einstein's way (Nigel Calder)
"A powerful collision of galaxy clusters has been captured by NASA's Hubble Space Telescope and Chandra X-ray Observatory. The observations of the cluster known as MACS J0025.4-1222 indicate that a titanic collision has separated the dark from ordinary matter and provide an independent confirmation of a similar effect detected previously in a target dubbed the Bullet Cluster. These new results show that the Bullet Cluster is not an anomalous case."
A Clash of Clusters Provides New Clue to Dark Matter (HST News Center, Chandra press room, NASA news)
Cosmic crash unmasks dark matter (BBC News)
Dark matter and normal matter 'divorce' in cosmic clash (New Scientist)
Dark matter detected in cosmic crash (MSNBC)
Powerful Cosmic Collision Creates Divorce of Matter (SPACE.com)
Clash of Clusters Separates Dark Matter From Ordinary Matter (Universe Today)
Cluster Smashup Is Dark Matter Proof (National Geographic News)
"Black holes are the most fuel efficient engines in the universe, according to a new study using NASA's Chandra X-ray Observatory. By making the first direct estimate of how efficient or 'green' black holes are, this work gives insight into how black holes generate energy and affect their environment..."
NASA's Chandra Finds Black Holes Are "Green" (Chandra press room, NASA HQ)
Black holes are actually 'green' (CNN.com, SPACE.com)
Scientists: Black Holes Energy-Efficient (Washington Post, FOXNews.com)
Black holes generate 'green' energy (MSNBC)
Black holes actually green: official (The Register)
High efficiency of black hole 'engines' revealed (New Scientist)
Older Black Holes Still Full of Energy (Scientific American)
Black Holes Are "Green," X-Ray Study Says (National Geographic News)
NGC 4696: Energy from a Black Hole (Astronomy Picture of the Day)
"Astronomers have detected and probed dark energy by applying a powerful, new method that uses images of galaxy clusters made by NASA's Chandra X-ray Observatory. The results trace the transition of the expansion of the Universe from a decelerating to an accelerating phase several billion years ago, and give intriguing clues about the nature of dark energy and the fate of the Universe..."
Chandra Opens New Line of Investigation on Dark Energy (Chandra press room, NASA HQ)
Universe given mid-life booster (BBC News)
Chandra unlocking mystery of 'dark energy' (CNN.com)
Galaxy cluster X-rays confirm dark energy (New Scientist)
Chandra Observations Confirm Existence of Dark Energy (Scientific American)
By X-Raying Galaxies, Researchers Offer New Evidence of Rapidly Expanding Universe (New York Times, subscription required)
Astronomers Find More Evidence of 'Dark Energy' (Washington Post)
Cosmos at full throttle (Christian Science Monitor)
X-ray Scan of Cosmos Probes Dark Energy (SPACE.com)
"NASA's Chandra X-ray Observatory has detected sound waves, for the first time, from a super-massive black hole. The "note" is the deepest ever detected from an object in the universe. The tremendous amounts of energy carried by these sound waves may solve a longstanding problem in astrophysics..."
Chandra "Hears" A Black Hole For The First Time (Chandra press room, NASA HQ)
Black hole hums B flat (BBC News)
Supermassive Black Hole Sings for Its Supper (Scientific American)
Music of the Heavens Turns Out to Sound a Lot Like a B Flat (New York Times, subscription required)
A Deep Voice From Deep Space (Washington Post, subscription required)
Black Hole Strikes Deepest Musical Note Ever Heard (SPACE.com)
Out of black hole's deep throat, a bass note (Christian Science Monitor)
A Note on the Perseus Cluster (Astronomy Picture of the Day)
"Using NASA's Chandra X-ray Observatory, astronomers have obtained their most accurate determination to date of the amount of dark matter in galaxy clusters, the most massive objects in the universe. The results provide an important step towards a precise measurement of the total matter density of the universe..."
Astronomers Take the Measure of Dark Matter in the universe (Chandra press room)
Studies Pins Down Quantity, Size of Dark Matter in Universe (SPACE.com)
Orbiting Observatories Tally Dark Matter (Science, pdf)
The Matter Of Galaxy Clusters (Astronomy Picture of the Day)
"NASA's Chandra X-ray Observatory image of Perseus A provides new insight into how this supergiant galaxy has grown by cannibalizing other galaxies and gas in the vicinity. For the first time astronomers see an X-ray shadow cast by a smaller galaxy as its gas is being stripped away by the enormous galaxy...."
"Astronomers have heard the first shy words from seemingly quiet supermassive black holes in the form of a unique type of X-ray light. These black holes exist in the centers of the oldest, largest galaxies and have a mass of about a billion suns, compressed into a region comparable to the size of our solar system..."
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