The 1,115-foot-wide (340 meters) asteroid Apophis will pass closer to Earth than many satellites fly in April 2029, giving ...

Early Earth lacked life’s essentials until a collision with Theia added them. This chance event made life possible. After the ...

In the search for habitable exoplanets, atmospheric conditions play a key role in determining if a planet can sustain liquid ...

An international team led by the University of Geneva (UNIGE), including scientists from the National Center of Competence in ...

I'm a planetary scientist who was born the year of Sputnik's launch. Over the course of my 40-year career, I've witnessed not ...

Impact history should be considered a key factor in the search for habitable Earth-like exoplanets. Southwest Research ...

A planetary scientist walks through the sensors and systems that went into the recent detection of potential biosignatures.

Xinting Yu, assistant professor in the Department of Physics and Astronomy at The University of Texas at San Antonio, is one of two recipients of the 2025 Harold C. Urey Prize. The national award from ...

TRAPPIST-1, a planetary system 40 light years from Earth, could host a planet with an atmosphere and liquid water, but astronomers can’t be certain just yet.

New research from Southwest Research Institute reveals that violent late-stage planetary collisions shaped Earth’s water, ...

Robotic missions have significantly advanced our understanding of Mars' past climate and geology. Analysis of Martian rocks reveals evidence of past water and potentially organic compounds. A Mars ...

Roger Wiens has been a Mars explorer since he was 11 years old. He now leads the SuperCam instrument team on NASA’s Mars ...