Space Exploration

SpaceX’s fifth Starship flight test concluded with mechanical arms snatching the descending rocket booster out of the air

For the first time, we are sending a spacecraft to explore an alien ocean world—a moon that might host life today

A roundup of the science Nobels, the latest COVID updates and the Europa Clipper launch delay.

Claims of worlds orbiting Barnard’s star have been made before. But an advanced instrument could provide the breakthrough that finally confirms the star hosts a planetary system

Sooner or later a doomsday asteroid will wipe out most life on Earth—unless, that is, we prevent threatening space rocks from hitting us in the first place

We are in a new and different kind of moon race, one the U.S. is losing. To win, says a former NASA official, we need new strategies

Comet C/2023 A3 (Tsuchinshan-ATLAS) could soon shine very bright in Earth’s skies

A small asteroid, 2024 PT5, will spend the next two months alongside our planet as a mini moon before swooping back to deep space

Scientists are putting a new spin on the creation of binary asteroids

Rather than building an obsolescent, obscenely-over-budget jumbo rocket, NASA should turn to building truly innovative space technologies and plan a realistic lunar landing program

NASA’s Artemis moon program faces challenges the Apollo missions never did

The world’s richest man, Elon Musk, owes his superstar success to self-satisfied competitors who blew obvious opportunities