Curiosity Watches the Martian Clouds Drift By

Clouds that are probably composed of ice crystals and possibly supercooled water droplets were caught in images by NASA’s Curiosity rov...

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Seeking Earth-Like Alien Worlds in the 'Venus Zone'

Despite being about the same size, Earth (represented by the right half of this image) and Venus (the left half), have vastly different ...

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Water Vapor Found on Neptune-Sized Exoplanet

A Neptune-size planet with a clear atmosphere is shown crossing in front of its star in this artist's depiction. NASA/JPL-Caltech ...

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Alien World Drives its Star Into Early Retirement

Artist's concept depicting the giant alien planet WASP-18b and its star, which are about 330 light-years away. NASA/CXC/M. Weiss ...

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Aliens May be Out There, but Too Distant for Contact

The SETI Institute's Allen Telescope Array (ATA) is hunting for radio signals from hypothetical intelligent alien life in our galaxy...

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NASA Injects New Funds Into Search for Origins of Life

Artist concept of an early Earth. NASA Life is all around us, on Earth. But what about elsewhere in the Universe? We kno...

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'Exo-Uranus' Discovered Around Distant Star

An infrared composite image of the two hemispheres of Uranus obtained by the Keck Observatory in Hawaii. Does this newly-discovered exop...

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Two Exocomet Families Found Around Baby Star System

This artist’s impression shows exocomets orbiting the star Beta Pictoris. Astronomers analysing observations of nearly 500 individual c...

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