The interstellar comet 3I/ATLAS has shifted from a routine curiosity to a physics puzzle, as NASA and other teams report that ...

NASA’s Mars Reconnaissance Orbiter (MRO) has taken a new and much clearer look at a confusing feature hidden deep under the Red Planet’s polar ice. In 2018, a different spacecraft picked up a bright ...

Linear gullies scratch the surface of sand dunes at Hellas Planitia on Mars. - NASA / JPL-Caltech / UArizona Strange, narrow channels threading through some of Mars' sand dunes have intrigued ...

A Martian mystery that sparked years of debate — an alleged lake buried beneath miles of ice — now looks far less watery than scientists hoped. A new radar study from NASA’s Mars Reconnaissance ...

Scientists have found that ancient Martian lakes could have survived for decades despite freezing air temperatures. Using a newly adapted climate model, researchers showed that thin, seasonal ice ...

The HiRISE orbiter successfully photographed interstellar comet 3I/Atlas during its high-speed journey past the red planet, offering scientists their closest view yet A camera designed to study the ...

Mini-lightning strikes created by whirling dust devils on Mars have been detected accidentally by the microphone on board the Perseverance rover. The chance discovery is direct evidence of a form of ...

Strange, narrow channels threading through some of Mars' sand dunes have intrigued scientists for years. These Martian features don't look like anything on Earth. Early theories proposed that flowing ...

On Earth, lightning can occur in turbulent clouds of volcanic ash. Now researchers have found evidence of sparks in Martian dust devils. (NASA/JPL/Caltech/University ...