Study Finds Planet Around Trappist-1 Star Shows No Signs of Life

Astronomers had hoped to observe an atmosphere on one of the seven planets known to orbit Trappist-1, a red dwarf star. A new study found nothing to write home about.

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Hints of Life on Exoplanet K2-18b Recede Even Further

New observations fail to confirm signs of life in the atmosphere of the distant planet K2-18b. They also raise questions about what it will take to detect biology light-years away.

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There’s Probably No Life on K2-18b After All, Three Studies Conclude

In April, astronomers said they had detected a possible signature of life on the exoplanet K2-18b. Now, three independent analyses discount the evidence.

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Her Discovery Wasn’t Alien Life, but Science Has Never Been the Same

The internet erupted in controversy over Felisa Wolfe-Simon and colleagues’ claim of a microbe thriving on arsenic. Nearly 15 years later, she’s pursuing new research on the boundaries of life.

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NASA Will Let Trump Decide How to Bring Mars Rocks to Earth

The Mars Sample Return effort was billions of dollars over budget and not expected to return to Earth with its samples until 2040.

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NASA and SpaceX Launch Europa Clipper to a Jupiter Moon

The spacecraft lifted off Monday on a SpaceX Falcon Heavy rocket, embarking on a nearly six-year journey to Jupiter.

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