The skepticism and debate around the question of "are we alone in the universe" makes the field of astrobiology more cautious ...

They have arrived! After an extended delay, the Axiom Mission-4 (Ax-4) crew flying aboard SpaceX's Crew Dragon "Grace" pulled up to the International Space Station and docked, beginning a two-week ...

Hundreds of thousands attended a mass funeral in Tehran for IRGC Chief General Hossein Salami and other top commanders killed ...

NASA astronaut Don Pettit, an energetic tinkerer and photographer, used his off-duty time on the International Space Station ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

Astronomers have discovered over 100 new alien worlds so far this year — some many light-years away from Earth — that showcase the vast diversity and drama of planetary systems across space .

Supermassive black holes usually lurk unseen, but when an unlucky star drifts too close they ignite titanic outbursts ...

A hidden box-lattice suggests groundwater sculpted Mars long after surface water fled; Curiosity’s drills aim to confirm the tale.

The designation is already used in other parts of the world to raise awareness for space science and planetary defense.

The NASA flight will get up close and personal with Southern California this weekend. NASA says the planes are being used to ...

Acting NASA Administrator Janet Petro is weighing center-centric and product line model approaches for the space agency's top ...

Some astronomers and atmospheric scientists want to see protections for relevant spectrum bands in reconciliation proposals.