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Earth & Space
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Today's news headlines from the sources selected by our team:
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Physicists Demonstrate How Information Can Escape From Black Holes
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Physicists have provided a mechanism by which information can be recovered from black holes -- and the first plausible mechanism for how information might escape from black holes, those regions of space where gravity is so strong that, according to Einstein's theory of general relativity, not even light can escape. The team's findings pave the way toward ending a decades-long debate sparked by renowned physicist Steven Hawking.
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Wandering Poles Left Scars On Jupiter's Moon Europa: Could Life Exist Beneath Icy Crust?
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Curved features on Jupiter's moon Europa may indicate that its poles have wandered by almost 90 degrees, report scientists. Such an extreme shift suggests the existence of an internal liquid ocean beneath the icy crust, which could help build the case for Europa as possible habitat for extraterrestrial life.
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NASA's GLAST Gets Shades, Blankets For The Beach
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NASA's Gamma-ray Large Area Space Telescope, or GLAST, is receiving finishing touches at the Cape Canaveral Air Force Station, near the beaches of eastern central Florida for its launch. The spacecraft is set for launch aboard a Delta II rocket no earlier than June 3. The launch window runs from 11:45 a.m. to 1:40 p.m. EDT.
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NASA Satellite Finds Interior of Mars Is Colder
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New observations from NASA's Mars Reconnaissance Orbiter indicate that the crust and upper mantle of Mars are stiffer and colder than previously thought.
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Eccentric pulsar system challenges theories of binary formation
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An ongoing sky survey using the Cornell-managed Arecibo radio telescope in Puerto Rico has turned up a massive, fast-spinning binary pulsar with a mysterious elongated orbit, researchers say. The pulsar and its companion star challenge currently accepted views of binary pulsar formation and give researchers a new opportunity for understanding the fundamental properties of highly dense matter.
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Astronomers use new model of dust in galaxies to remeasure the total energy output of stars in the universe
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Anyone gazing up on a dark clear night is greeted by the spectacle of thousands of powerful fusion reactors - the stars. These balls of extremely hot gas are generating unimaginably large quantities of energy. Even the stars within a cube of "only" one light year on a side, taken at a random position in the universe, generate on average 40 quadrillion kilowatthours in one year.
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Addressing the 'nitrogen cascade'
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While human-caused global climate change has long been a concern for environmental scientists and is a well-known public policy issue, the problem of excessive reactive nitrogen in the environment is little-known beyond a growing circle of environmental scientists who study how the element cycles through the environment and negatively alters local and global ecosystems and potentially harms human health.
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Microsoft in deal on European environment data
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(AP) -- Microsoft Corp. says it is collaborating with the European Environmental Agency to make information about local air and water pollution levels freely available to consumers through Microsoft Web portals.
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