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 ...

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 ...

Late-stage planetary collisions reshaped Earth and its neighboring planets, delivering water, altering their atmospheres, and ...

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

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 ...

Scientists using NASA’s Perseverance rover have captured visible green auroras on Mars and developed tools to predict them. Planetary scientists say they can now forecast when a green aurora will ...

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 ...

A 2014 astronaut photo shows a pair of volcanic lakes appearing to stare up into space from the Chiltepe Peninsula of ...

A team of scientists has investigated how Earth’s twin became so inhospitable, and whether the same will happen to our planet ...