![]() Image 1, Recent Hubble Picture [High Res] The Hubble Space Telescope has photographed the eerie, green-glowing gas highlighted by a recently deceased quasar. The Milky-Way-sized object, located about 730 million light-years away, surrounds a supermassive black hole that was once the heart of a galaxy. The black hole gobbled up its last available meal of gas and dust as a quasar between 45,000 and 70,000 years ago, ionizing oxygen in distant gas clouds into a bright green glow before fading back into darkness. The glowing gas cloud, known as Hanny’s Voorwerp, is now 100 to 10,000 times dimmer than the quasar was when it was still devouring matter. The green object is named after Hanny van Arkel, the Dutch schoolteacher who discovered it in 2007 while helping classify more than 60 million galaxies for the Galaxy Zoo project. In the new Hubble image (above) of Hanny’s Voorwerp, taken with Hubble’s Wide Field Camera 3 and Advanced Camera for Surveys, the nearby spiral galaxy IC 2497 is helping to spark star formation in the yellow-orange fringes of the Voorwerp. The new stars are a few million years old. Original Article: http://www.wired.com/wiredscience/2011/01/hannys-voorwerp-quasar-hubble/
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![]() By Mike Wall This story originally appeared on Space.com When considering the prospect of alien life, humankind should prepare for the worst, according to a new study: Either we're alone, or any aliens out there are acquisitive and resource-hungry, just like us. These two unpalatable options are pretty much the only possibilities, according to the new study. That's because evolution is predictable, and alien biospheres should thus produce intelligent creatures much like us, with technological prowess and an ever-increasing need for resources. But the fact that we haven't run across E.T. yet argues strongly for the latter possibility -- that we are alone in the universe's howling void, the study suggests. "At present, as many have observed, it is very quiet out there," study author Simon Conway Morris, of the University of Cambridge, told SPACE.com in an e-mail interview. "And given many planetary systems are billions of years older than ours, I'd expect us to be best grilled on toast back in the Cambrian." ![]() The next launch opportunity for the space shuttle appears to be Feb. 27, but it may be possible to move that up by a few days. Discovery and its six-member crew were set for a Nov. 5 liftoff to the International Space Station. But a problem with plumbing on the liquid-hydrogen section of the tank prompted mission controllers to scrub the launch. A subsequent inspection of the tank led to the discovery of cracks in two 21-foot-long vertical ribs, or "stringers," that reinforce the orange-hued shell near the top of the tank. Since then technicians have discovered more cracked stringers and have been undertaking repairs on the orbiter, which was hauled off the pad and returned to the National Aeronautics and Space Administration's Vehicle Assembly Building to allow teams to inspect all the vertical supports. So far, 32 stringers have been reinforced, according to a report in Florida Today. One issue that managers are trying to resolve is whether all 108 of the stringers should be strengthened. The Earth-orbiting satellite Hinode caught this stunning video of the annular solar eclipse Jan. 4.
An annular eclipse occurs when the moon is slightly farther from Earth than usual and appears slightly smaller. When it moves between the Earth and sun, it covers the center of the sun, leaving a bright, fiery ring, or annulus, at the edge. Hinode, a Japanese mission, studies the sun’s magnetic fields and surface eruptions. The satellite carries three NASA-developed telescopes that capture different types of light:
Video: Hinode/XRT Original Article by Danielle Venton ![]() WikiLeaks founder Julian Assange said on Friday that there were some references to UFOs in “yet-to-be-published” confidential files obtained from the U.S. government. In an online chat hosted by the U.K.’s Guardian newspaper, he also said that no one has been harmed by his organization’s release of troves of secret documents. “WikiLeaks has a four-year publishing history. During that time there has been no credible allegation, even by organizations like the Pentagon, that even a single person has come to harm as a result of our activities,” Assange said in response to a reader’s question. “This is despite much-attempted manipulation and spin trying to lead people to a counter-factual conclusion. We do not expect any change in this regard.” |
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