Archive: 27/08/2010

Sizes for potentially dangerous asteroids

Near Earth Objects (NEOs) are asteroids or comets whose orbits sometimes take them close to the earth's orbit. An NEO could therefore someday collide with the earth -- and there are almost 7000 of them known, with several ...

dateAug 27, 2010 in Astronomy
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Egg cells use unusual method of division

(PhysOrg.com) -- In a study of egg cells using time-lapse microscopy, researchers at the University of California, San Diego School of Medicine and the Ludwig Institute for Cancer Research have discovered an unusual property ...

dateAug 27, 2010 in Cell & Microbiology
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Water-Ice Super-Earths

A "super-Earth" is a planet around another star (an "exoplanet") whose mass is less than about ten times that of the Earth. Of the 480 or so extrasolar planets now known, most have masses larger than the mass of Jupiter, ...

dateAug 27, 2010 in Astronomy
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Image: A strange ring galaxy

(PhysOrg.com) -- Is this one galaxy or two? Astronomer Art Hoag first asked this question when he chanced upon this unusual extragalactic object.

dateAug 27, 2010 in Astronomy
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