News tagged with rocky planet

Clocking Neptune's spin

(PhysOrg.com) -- By tracking atmospheric features on Neptune, a UA planetary scientist has accurately determined the planet's rotation, a feat that had not been previously achieved for any of the gas planets ...

Jun 29, 2011 4.8 / 5 (15) 3 | with audio podcast

Our unlikely solar system

Recent modeling of solar mass stars with planetary systems, found that a system with four rocky planets and four gas giants in stable orbits – and only a sparsely populated outer belt of planetesimals ...

Apr 11, 2011 4.6 / 5 (18) 116 | with audio podcast

Superior Super Earths

Super Earths are named for their size, but these planets - which range from about 2 to 10 Earth masses - could be superior to the Earth when it comes to sustaining life. They could also provide an answer to ...

Nov 30, 2009 4.7 / 5 (58) 15