News tagged with planetary mass

Retired star found with planets and debris disc

(Phys.org) —ESA's Herschel space observatory has provided the first images of a dust belt – produced by colliding comets or asteroids – orbiting a subgiant star known to host a planetary system. The ...

Apr 09, 2013
4.8 / 5 (6) 3 | with audio podcast

Free-floating planets may be born free

Tiny, round, cold clouds in space have all the right characteristics to form planets with no parent star. New observations, made with Chalmers University of Technology telescopes, show that not all free-floating ...

Aug 19, 2013
5 / 5 (21) 13 | with audio podcast

Modeling Jupiter and Saturn's possible origins

New theoretical modeling by Carnegie's Alan Boss provides clues to how the gas giant planets in our solar system—Jupiter and Saturn—might have formed and evolved. His work was published recently by the ...

Mar 05, 2013
4 / 5 (1) 0 | with audio podcast

Stellar winds

(PhysOrg.com) -- The Sun, glowing with a surface temperature of about 5500 degrees Celsius, warms the Earth with its salutary light. Meanwhile the Sun's hot outer layer (the corona), with its temperature of ...

Oct 10, 2011
5 / 5 (2) 7 | with audio podcast

Rocky planets could have been born as gas giants

When NASA announced the discovery of over 1,200 new potential planets spotted by the Kepler Space Telescope, almost a quarter of them were thought to be Super-Earths. Now, new research suggests that these ...

Sep 16, 2011
4.8 / 5 (12) 38

Weighing the Antarctic ice sheet

One of the last big unknowns in the global climate equation is Antarctica. How stable is the Antarctic ice sheet? More than a mile thick, on average, it locks up 70 percent of the Earth's fresh water.

Sep 27, 2013
4.3 / 5 (7) 0