News tagged with planetary mass

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.

dateSep 27, 2013 in Earth Sciences
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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 ...

dateAug 19, 2013 in Astronomy
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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 ...

dateApr 09, 2013 in Astronomy
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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 ...

dateMar 05, 2013 in Astronomy
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Greenland's current loss of ice mass

The Greenland ice sheet continues to lose mass and thus contributes at about 0.7 millimeters per year to the currently observed sea level change of about 3 mm per year. This trend increases each year by a further 0.07 millimeters ...

dateMay 29, 2012 in Earth Sciences
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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 ...

dateOct 10, 2011 in Astronomy
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