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

Are super-Earths actually mini-Neptunes?

(Phys.org)—In the last two decades astronomers have found hundreds of planets in orbit around other stars. One type of these so-called 'exoplanets' is the super-Earths that are thought to have a high proportion ...

Feb 04, 2013
4.6 / 5 (10) 15 | with audio podcast

Looking for life in all the wrong places

(Phys.org) —Scientists have long focused their search for extraterrestrial life on Earth-like planets – but that may be a mistake, according to a McMaster researcher.

Feb 03, 2014
4.3 / 5 (25) 29 | with audio podcast

Atmosphere models seek clues for rocky exoplanets

When a distant planet appears as a point of light in a telescope, it's hard to imagine what things are like at the surface. Does rain fall? Is the atmosphere thick, or dissipating into space? How constant ...

Mar 03, 2014
4.1 / 5 (7) 4

Can binary terrestrial planets exist?

The possible existence of Earth-like binary planets is being described today at the American Astronomical Society's Division for Planetary Sciences meeting in Tucson, AZ. Two bodies, each of mass similar ...

Dec 03, 2014
4.5 / 5 (37) 17

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