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Earth & Space News
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Today's earth & space headlines from the sources selected by our team:
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Mysterious cosmic 'dark flow' tracked deeper into universe
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Distant galaxy clusters mysteriously stream at a million miles per hour along a path roughly centered on the southern constellations Centaurus and Hydra. A new study tracks this collective motion -- dubbed the "dark flow" -- to twice the distance originally reported.
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Shocking recipe for making killer electrons
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Take a bunch of fast-moving electrons, place them in orbit and then hit them with the shock waves from a solar storm. What do you get? Killer electrons. That's the shocking recipe revealed by ESA's Cluster mission.
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Galaxy study validates general relativity on cosmic scale, existence of dark matter
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While general relativity describes well the behavior of the solar system, Einstein's theory of gravity and spacetime has not been tested on cosmological scales. Now, a team has analyzed data on 70,000 galaxies to show that the theory is so far the best description of the universe, at least out to 3.5 billion light years from Earth. Specifically, theories without dark matter do not fit the observations.
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Survey shows lack of confidence in national hurricane response planning
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According to a study recently completed by an LSU group charged with conducting studies on improving hurricane crisis communication in coastal communities, many families have a well-developed hurricane response plan of their own but have little faith in the preparation developed at higher government levels.
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Shocking recipe for making killer electrons (w/ Video)
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Take a bunch of fast-moving electrons, place them in orbit and then hit them with the shock waves from a solar storm. What do you get? Killer electrons. That's the shocking recipe revealed by ESA's Cluster mission.
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Deforestation conference to turn plans to action
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(AP) -- French President Nicolas Sarkozy will open a daylong conference Thursday of some 40 nations to start turning plans into action to save the world's forests and help rein in the noxious gases blamed for climate change.
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More maize ethanol may boost greenhouse gas emissions
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In the March issue of BioScience, researchers present a sophisticated new analysis of the effects of boosting use of maize-derived ethanol on greenhouse gas emissions. The study, conducted by Thomas W. Hertel of Purdue University and five co-authors, focuses on how mandated increases in production of the biofuel in the United States will trigger land-use changes domestically and elsewhere. In response to the increased demand for maize, farmers convert additional land to crops, and this conversion can boost carbon dioxide emissions.
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Spirit's Journey to the Center of Mars
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NASA's venerable Mars rover Spirit is starting a second career as an explorer of the Martian core--but first it must survive the deadly Martian winter.
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Cool Movie: SDO Destroys a Sundog
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NASA's Solar Dynamics Observatory amazed onlookers last week when it flew past a sundog and destroyed it. Must-see videos of the event captured shock waves from the rocket billowing through the sundog, eliciting cries of delight and amazement from the crowd below.
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The top 5 resources selected by our team for earth & space news coverage:
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