News tagged with outer layers

Shrinking atmospheric layer linked to low levels of solar radiation

Large changes in the sun's energy output may drive unexpectedly dramatic fluctuations in Earth's outer atmosphere.

Aug 26, 2010 | 4.3 / 5 (6) | 18 |

Water Planets

Of the roughly 420 extra-solar planets now known, about a dozen are in the newly named category of "super-earths," planets whose masses are in between of two and about fifteen earth-masses.

Space & Earth / Astronomy

Jan 22, 2010 | 4.6 / 5 (18) | 4 |