Assessing the habitability of planets around old red dwarfs

A new study using data from NASA's Chandra X-ray Observatory and Hubble Space Telescope gives new insight into an important question: how habitable are planets that orbit the most common type of stars in the Galaxy? The target ...

Understanding the 'deep-carbon cycle'

New geologic findings about the makeup of the Earth's mantle are helping scientists better understand long-term climate stability and even how seismic waves move through the planet's layers.

Study illuminates fates of distant planetary atmospheres

When telescopes became powerful enough to find planets orbiting distant stars, scientists were surprised to see that a lot of them didn't have atmospheres like Earth's. Instead, they appear to have thick blankets of hydrogen.

How to design continents for maximum tides

The shape and size of continents control the size of ocean tides on Earth-like planets, according to a new study that simulated the effects of random continental configurations on the energy of tides. The results have implications ...

Study suggests bright patches on Titan are dry lake beds

A team of researchers affiliated with several institutions in the U.S. and one in France has found evidence that suggests the bright patches spotted on Titan's surface 20 years ago are dry lake beds. In their paper published ...

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