News tagged with planetary body

Vesta likely cold and dark enough for ice

(PhysOrg.com) -- Though generally thought to be quite dry, roughly half of the giant asteroid Vesta is expected to be so cold and to receive so little sunlight that water ice could have survived there for ...

Jan 25, 2012
4.8 / 5 (4) 97 | with audio podcast

Dirty stars make good solar system hosts (w/ Video)

Some stars are lonely behemoths, with no surrounding planets or asteroids, while others sport a skirt of attendant planetary bodies. New research published this week in The Astrophysical Journal Letters explains why the co ...

Oct 06, 2009
4.6 / 5 (7) 1

Pulverized planet dust might lie around double stars

(PhysOrg.com) -- Tight double-star systems might not be the best places for life to spring up, according to a new study using data from NASA's Spitzer Space Telescope. The infrared observatory spotted a surprisingly ...

Aug 23, 2010
4.4 / 5 (5) 1 | with audio podcast

A Hazy View of Early Earth

Haze in the early Earth atmosphere could have played a crucial role in the origin of life. By forming a protective shield, the haze would have safeguarded organic substances from harmful ultraviolet (UV) radiation. ...

Oct 12, 2009
4.3 / 5 (4) 3