News tagged with habitable planet

Coming to a solar system near you… super-Earth!

It is our general understanding of solar system composition that planets fall into two categories: gas giants like Jupiter, Saturn, Neptune and Uranus… and rocky bodies that support some type of atmosphere ...

Aug 08, 2011
4.8 / 5 (16) 15 | with audio podcast

Greenhouse effect could extend habitable zone

The distant region beyond Saturn is too cold for liquid water, a necessity for life as we know it. But new research indicates that rocky planets far from their parent star could generate enough heat to keep ...

Aug 26, 2011
4.8 / 5 (9) 20 | with audio podcast

Habitable zones

(PhysOrg.com) -- The "habitable zone" is the region around a star where a suitable planet could sustain the conditions necessary for life. Most astronomers take it to be the region where the balance between ...

Aug 22, 2011
4 / 5 (5) 20 | with audio podcast

Hunting for transits of Super-Earth GJ 581e

(PhysOrg.com) -- An international team of astronomers has ruled out transits of a water-rich or hydrogen-helium atmosphere planet for Gliese 581e. The host star itself is relatively quiet which means good ...

Jun 02, 2011
4.9 / 5 (11) 2 | with audio podcast

Kepler wraps prime mission, begins extension

(Phys.org)—NASA is marking two milestones in the search for planets like Earth; the successful completion of the Kepler Space Telescope's three-and-a-half-year prime mission and the beginning of an extended ...

Nov 15, 2012
4.4 / 5 (7) 18 | with audio podcast

Planets in 'habitable zone' may provide answers

The Gliese 581 system has been making headlines recently for the most newly announced planet that may lie in the habitable zone. Hopes were somewhat dashed when we were reminded that the certainty level of ...

Oct 25, 2010
4.6 / 5 (16) 5 | with audio podcast

Habitable exoplanets are bad news for humanity

Last week, scientists announced the discovery of Kepler-186f, a planet 492 light years away in the Cygnus constellation. Kepler-186f is special because it marks the first planet almost exactly the same size as Earth ...

Apr 24, 2014
3.8 / 5 (85) 91

The Eerie Silence

Why have we not made contact with aliens after so many years searching the depths of space? The Eerie Silence, a new book by SETI researcher Paul Davies, provides a fresh and thoughtful look at this question.

Apr 15, 2010
4.8 / 5 (36) 71 | with audio podcast

Discovery of an extrasolar earth-sized planet

(PhysOrg.com) -- There are now over 490 confirmed extrasolar planets. The vast majority are gas giants like Jupiter, but they are much stranger because many orbit close to their stars and so are much hotter ...

Oct 08, 2010
4.8 / 5 (22) 9 | with audio podcast

Sulfurous signs of life

Any sulfurous molecules that astronomers spot on alien worlds might be a way to reveal whether or not those distant planets host life, researchers suggest.

Jun 30, 2011
3.7 / 5 (9) 17 | with audio podcast