Asteroid nine times larger than cruise ship to sail past Earth

Asteroid nine times …

On May 31, 2013, asteroid 1998 QE2 will sail serenely past Earth, getting no closer than about 3.6 million miles (5.8 million kilometers), or about 15 times the distance between Earth and the Moon. While QE2 is not of much…

Asteroid nine times …
Blue Sun, NASA’s Astronomy Picture Of Day, Reveals Our Star’s Chromosphere …

Blue Sun, NASA’s Ast…

What if we had a blue sun? NASA's most recent "astronomy picture of the day" offers a false-color glimpse of our star in the cool hue, revealing a detailed look at the sun's chromosphere.

The chromosphere is the layer of the…

Blue Sun, NASA’s Ast…
Mars rover Opportunity examines clay clues in rock

Mars rover Opportuni…

NASA’s senior Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on “Cape York,” with examination of a rock intensely altered by water.
The fractured rock, called “Esperance,” provides evidence about an ancient…

Mars rover Opportuni…
The trouble with Kepler

The trouble with Kep…

NASA announced a problem on Wednesday that threatens to cripple one of its highest-profile missions, the Kepler Space Telescope, an instrument dedicated to finding Earth-like planets orbiting other stars.
Since its launch in 2009, Kepler has found 130 planets orbiting…

The trouble with Kep…
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Astronomers see more planets than stars in galaxy

By alkaon on January 11, 2012 No Comments

Three studies released Wednesday, in the journal Nature and at the American Astronomical Society’s conference in Austin, Texas, demonstrate an extrasolar real estate boom. One of those studies shows that in our Milky Way, most stars have planets. And since there are a lot of stars in our galaxy — about 100 billion — that means a lot of planets.

Article source: http://www.boston.com/news/local/massachusetts/articles/2012/01/11/astronomers_see_more_planets_than_stars_in_galaxy/

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NASA Image of the day

The Twin Rectangular Jet model, installed on the Nozzle Acoustic Test Rig in the Aeroacoustic Propulsion Laboratory at NASA's Glenn Research Center being tested.

 
The Twin Rectangular Jet model, installed on the Nozzle Acoustic Test Rig in the Aeroacoustic Propulsion Laboratory at NASA's Glenn Research Center, is being tested to determine the acoustic impact of engine configurations on low sonic boom aircraft for the High Speed Project of the Fundamental Aeronautics Program. The High Speed Project is a multi-center effort to develop and test the technologies of a new generation of aircraft that can fly at supersonic speeds. Glenn's research involves predicting the airport noise of these novel aircraft by examining innovative airframes and propulsion integration that are different from the conventional tube-and-wing aircraft observed at commercial airports. Inside the aeroacoustic dome, this generic, low-fidelity aircraft engine exhaust model features twin rectangular nozzles. Researchers are investigating the impact of having the propulsive exhaust come from the slot nozzles atop the aircraft. Testing the proposed components of these high- speed aircraft will help manufacturers meet the noise standards required around the nation's airports. Image Credit: NASA/Bridget R. Caswell
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