Habitable Zones & Global Climate

Climate Stability of Habitable Earth-like Planets

Climate Stability of Habitable Earth-like Planets

The carbon-silicate cycle regulates the atmospheric CO2 content of terrestrial planets on geological timescales through a balance between the rates of CO2 volcanic outgassing and planetary intake from rock weathering.

Origin & Evolution of Life

Deep-earth Carbon Offers Clues on Origin of Life on Earth

Deep-earth Carbon Offers Clues on Origin of Life on Earth

New findings by a Johns Hopkins University-led team reveal long unknown details about carbon deep beneath the Earth's surface and suggest ways this subterranean carbon might have influenced the history of life on the planet.

comets

Looking for Cometary Organics

Looking for Cometary Organics

Before going into hibernation at 01:36 CET on 15 November 2014, the Philae lander was able to conduct some work using power supplied by its primary battery.

Analog Studies

Dale Andersen's Field Reports: Lake Untersee, Antarctica 15 November 2014

Dale Andersen's Field Reports: Lake Untersee, Antarctica 15 November 2014

On The Road to Lake Untersee: We are completely packed up now, using the Everest tracked vehicle, pulling two sleds behind it.

Astrochemistry

What Chemistry Is Rosetta's Comet Lander Looking For?

What Chemistry Is Rosetta's Comet Lander Looking For?

Today, the European Space Agency's (ESA) Rosetta mission is attempting one of the most ambitious maneuvers in space exploration: to soft-land a robotic probe on a comet for the first time.

comets

Philae Lander Could Provide Insights into Origins of Earth's Water

Philae Lander Could Provide Insights into Origins of Earth's Water

After 10 years and four billion miles NASA's Rosetta satellite is poised make space science history tomorrow when it launches its Philae lander onto the surface of the ancient comet, 67P/Churyumov-Gerasimenko.

Analog Studies

Dale Andersen's Field Reports: Lake Untersee, Antarctica 10 November 2014

Dale Andersen's Field Reports: Lake Untersee, Antarctica 10 November 2014

The team is on the ice, having arrived ok at Novolazarevskaya Station yesterday afternoon.

Astronomy

European Satellite Could Discover Thousands of Planets

European Satellite Could Discover Thousands of Planets

Princeton University and Lund University researchers project that the recently launched European satellite Gaia could discover tens of thousands of planets during its five-year mission.

Habitable Zones & Global Climate

Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions

Water Trapping on Tidally Locked Terrestrial Planets Requires Special Conditions

Surface liquid water is essential for standard planetary habitability.

Moons and Icy Worlds

Processing of Analogues of Plume Fallout in Cold Regions of Enceladus by Energetic Electrons

Processing of Analogues of Plume Fallout in Cold Regions of Enceladus by Energetic Electrons

Enceladus, a small icy moon of Saturn, is one of the most remarkable bodies in the solar system.

SETI

Workshop Ponders Challenges of Communicating Across the Cosmos

Workshop Ponders Challenges of Communicating Across the Cosmos

When astronomers conducting the search for extraterrestrial intelligence (SETI) find other cultures in the universe, could we understand their messages?

More top stories from November.