The tallest rocket ever built is now standing on its launch pad ahead of its next mission. SpaceX is about to debut Version 3 ...

"Each time a satellite has to maneuver to avoid a potential collision, it uses fuel which is a finite and precious resource." ...

A lot of time and effort goes into planning routes for space missions. Researchers look for the most efficient path between ...

The U.S. military test-launched an unarmed nuclear-capable intercontinental ballistic missile overnight to verify the ...

SpaceX is now targeting a Thursday, May 21, launch for its newest Starship design, the Starship V3 megarocket. See our latest ...

Right now, a spacecraft named Psyche is headed to its namesake asteroid, 16 Psyche. The theory is that 16 Psyche, which lies ...

Look west after sunset on May 21 to see the crescent moon shining alongside the Beehive Cluster in the constellation Cancer, ...

For decades, astronomers have described the galaxy cluster Abell 2029, a vast city of galaxies in the Virgo constellation, as ...

Argentina's towering, snow-capped Andes Mountains and turquoise lake waters are stunning from above in this new image ...

This goes against the previous theory, which has long suggested that Nereid is actually an object captured from the Kuiper ...

A long-term study of humanity's footprint after dark reveals a constantly shifting portrait of human activity visible from ...

SpaceX expanded its low Earth orbit megaconstellation on Tuesday (May 19), adding 24 more Starlink satellites on a successful launch from California. A Falcon 9 rocket lifted off at 10:46 p.m. EDT ...