News tagged with terrestrial planets

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Giant planet ejected from the solar system

(PhysOrg.com) -- Just as an expert chess player sacrifices a piece to protect the queen, the solar system may have given up a giant planet and spared the Earth, according to an article recently published in ...

Nov 10, 2011
4.2 / 5 (21) 34 | with audio podcast

Heavy metal stars produce Earth-Like planets

New research reveals that, like their giant cousins, rocky planets are more likely to be found orbiting high metallicity stars. Furthermore, these planets are more plentiful around low mass stars. This could ...

Sep 30, 2011
5 / 5 (14) 64 | 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

UCL space missions get the go-ahead

University College London space scientists are involved in two out of four missions that have been selected by the European Space Agency to compete for a launch opportunity at the start of the 2020s.

Mar 03, 2011
3.7 / 5 (3) 1

Probing Question: What is a Near Earth?

In the 1997 movie "Contact" (based on the novel by Carl Sagan), actress Jodie Foster plays an astrophysicist devoted to SETI -- the Search for Extra-Terrestrial Intelligence. Despite doubting colleagues, she ...

Sep 27, 2010
3.6 / 5 (10) 2

How water forms where Earth-like planets are born

(PhysOrg.com) -- In a study that helps to explain the origins of water on Earth, University of Michigan astronomers have found that water vapor can form spontaneously in habitable zones of solar systems, and that it develops ...

Dec 17, 2009
4.5 / 5 (11) 1