Save
Email
Print
Share
RSSBrowse News Stories
61 to 70 of 557 stories
view headlines only
-
NuSTAR Space Telescope Opens Its X-Ray Eyes
June 28, 2012 — NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has snapped its first test images of the sizzling high-energy X-ray universe. The observatory, launched June 13, is the first space telescope ... > full story -
Most Quasars Live on Snacks, Not Large Meals
June 19, 2012 — A census of 30 quasar host galaxies, conducted with the Hubble Space Telescope and Spitzer Space Telescope, has found that black holes in the early universe may have only needed a few snacks, such as ... > full story -
Black Holes as Particle Detectors
June 18, 2012 — Black holes could serve as particle detectors, say scientists. Axions, a hypothetical but not improbable kind of particles, could accumulate around a black hole, creating a "boson cloud". After some ... > full story -
Black Hole Growth Found to Be out of Sync
June 11, 2012 — New evidence from NASA's Chandra X-ray Observatory challenges prevailing ideas about how black holes grow in the centers of galaxies. Astronomers long have thought that a supermassive black hole and ... > full story -
How Black Holes Change Gear
June 7, 2012 — Black holes are extremely powerful and efficient engines that not only swallow up matter, but also return a lot of energy to the universe in exchange for the mass they eat. When black holes attract ... > full story -
Giant Black Hole Kicked out of Home Galaxy
June 4, 2012 — Astronomers have found strong evidence that a massive black hole is being ejected from its host galaxy at a speed of several million miles per hour. New observations suggest that the black hole ... > full story -
X-Ray 'Echoes' Map a Supermassive Black Hole's Environs in Distant Galaxies
May 31, 2012 — Astronomers have identified a long-sought X-ray "echo" that promises a new way to probe supersized black holes in distant ... > full story -
Ghostly Gamma-Ray Beams Blast from Milky Way's Center
May 29, 2012 — As galaxies go, our Milky Way is pretty quiet. Active galaxies have cores that glow brightly, powered by supermassive black holes swallowing material, and often spit twin jets in opposite directions. ... > full story -
Measuring Transient X-Rays With Lobster Eyes
May 18, 2012 — A technology that mimics the structure of a lobster's eyes is now being applied to a new instrument that could help revolutionize X-ray astronomy and keep astronauts safe on the International Space ... > full story -
Three-Telescope Interferometry Allows Astrophysicists to Observe How Black Holes Are Fueled
May 16, 2012 — By combining the light of three powerful infrared telescopes, scientists have observed the active accretion phase of a supermassive black hole in the center of a galaxy tens of millions of light ... > full story
Search ScienceDaily
Number of stories in archives: 137,075
more 
