Dark formations with leg-like tendrils pop out in European Space Agency images of Mars. These eye-catching seasonal spiders ...

The European Space Agency’s Trace Gas Orbiter captured these “spiders” with stunning clarity near a south polar region called ...

The map could help the agency decide where the first astronauts to the Red Planet should land. The more available water, the less missions will need to bring.

The Sun will be at peak activity this year, providing a rare opportunity to study how solar storms and radiation could affect ...

The European Space Agency’s Mars Express has snapped the telltale traces of ‘spiders’ scattered across the southern polar ...

"There's much more water than we thought 20 or 30 years ago, and it's really interesting to use this technique to try to ...

ESA's Mars Express has snapped the telltale traces of  ‘black spiders’ scattered across the southern polar region of Mars ...

Mars may be a cold, desolate place, but it’s a planet packed with secrets. One of the most intriguing mysteries of Mars has ...

The most surprising revelation from NASA’s Curiosity Mars Rover — that methane is seeping from the surface of Gale Crater — ...

Mars' Inca City, formally known as Angustus Labyrinthus, exhibits a linear, almost geometric network of ridges like the Inca ruins on Earth. It is part of a circular feature appro ...

Dan Wetzel, Ross Dellenger, and SI's Pat Forde react the best, worst, and most surprising picks in the 2024 NFL Draft. The ...

At a recent workshop, researchers and journalists debated how to announce a potential discovery of extraterrestrial life ...