Tuesday, September 23, 2014

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News

Infant solar system shows signs of windy weather

Posted: 22 Sep 2014 12:29 PM PDT

Astronomers have observed what may be the first-ever signs of windy weather around a T Tauri star, an infant analog of our own Sun. This may help explain why some T Tauri stars have disks that glow weirdly in infrared light while others shine in a more expected fashion.

Finding hints of gravitational waves in the stars

Posted: 22 Sep 2014 06:12 AM PDT

Scientists have shown how gravitational waves -- invisible ripples in the fabric of space and time that propagate through the universe -- might be 'seen' by looking at the stars. The new model proposes that a star that oscillates at the same frequency as a gravitational wave will absorb energy from that wave and brighten, an overlooked prediction of Einstein's 1916 theory of general relativity. The study contradicts previous assumptions about the behavior of gravitational waves.

NASA's Newest Mars Mission Spacecraft Enters Orbit around Red Planet

Posted: 22 Sep 2014 08:11 AM PDT

NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft successfully entered Mars' orbit at 7:24 p.m. PDT (10:24 p.m. EDT) Sunday, Sept. 21, where it now will prepare to study the Red Planet's upper atmosphere as never done before. MAVEN is the first spacecraft dedicated to exploring the tenuous upper atmosphere of Mars.

SpaceX Dragon spacecraft lifts off with scientific cargo for International Space Station

Posted: 21 Sep 2014 08:11 AM PDT

An eruption of fire and smoke sent a SpaceX Dragon spacecraft skyward laden with 5,000 pounds of scientific equipment and supplies destined for use by the crew of the International Space Station.
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