The history of Earth is written on the great tablets of tectonic plates. The motions of plates shaped land masses, formed ...

There's more evidence that water once flowed on Mars with the discovery of an ancient river delta deep below the surface. NASA's Perseverance rover found it more than 35 meters beneath Jezero Crater ...

Multiple spacecraft and rovers have now detected what appears to be an extensive network of ancient river channels hidden beneath the Martian surface, buried under layers of lava and sediment that ...

A new study focuses on krypton gas in the hopes of understanding how ancient coastlines and landscapes change in Earth’s past ...

NASA is weighing changes to its Artemis lunar program that would insert a new practice mission after Artemis II and shift the first crewed Moon landing to a later mission in the sequence, according to ...

But sometimes the most fascinating way to explore history is by asking a simple question: what if things had gone differently? Alternate history stories take familiar timelines and twist them, ...

Using ground-penetrating radar, NASA's Perseverance rover has detected underground remains of an ancient river delta on Mars ...

A century after Robert Goddard’s first-ever launch of a liquid-fueled rocket, two NASA experts weigh in on what his legacy ...

By plying its ground-penetrating radar in the depths of Mars’s Jezero Crater, this rover has found even older deltas buried beneath those seen on the surface from space ...

At some point the Church must acknowledge that patterns reveal character, and the character trumps the charisma ...

NASA's Artemis 2 mission is targeting an April 1 launch, sending a crew of astronauts on a historic trip around the moon.

This low-angle self-portrait of NASA’s Curiosity Mars rover shows the vehicle at the site from which it reached down to drill into a rock target called “Buckskin” on lower Mount Sharp.