Gravity and motion make time pass faster on Mars than Earth, reshaping navigation, communication, and future crewed missions.

A FIERY hell-world that would instantly roast visitors alive has a vast lava ocean – and may be packed with rare gems. The ...

Fresh mapping of the outer solar system has revealed a previously unseen pattern in the Kuiper Belt, the icy ring of debris beyond Neptune that has long been treated as a relatively simple torus of ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

From 2026 to 2031, Professor of Computational Space Physics Minna Palmroth will serve as an Academy Professor, and from 2026 to 2030, as director of ...

Greetings everyone! We’ve lost three of the five visible planets to the sun’s glare with only Jupiter remaining in the ...

Mars orbiters have given astronomers an unexpected new vantage point on 3I/ATLAS, sharply tightening estimates of the ...

Bigger, Reusable Heavy-Lift Rockets. Since the very first orbital missions of Sputnik and Yuri Gagarin, space exploration has ...

"These images are not just pretty." ...

Saturn stunned skywatchers on 23 November when its iconic rings seemed to vanish, leaving the planet looking strangely bare. Astronomers confirmed nothing was wrong. Earth had passed directly through ...

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...