Astronomers have finally weighed a wandering “rogue” planet, uncovering a Saturn-mass world flung into the galaxy after a dramatic planetary breakup.

Simultaneous ground- and space-based observations of a newly discovered free-floating planet have enabled direct measurement of its mass and distance from Earth, according to a new study. The findings ...

Astronomers have weighed a lonely planet drifting through the Milky Way, using a rare cosmic alignment. How this exiled world ...

A look at the most-read space stories of 2025, covering satellite activity, space missions, scientific discoveries, and natural events observed from Earth ...

One story rose above all the others — new and older telescopes are putting us on the cusp of monumental discoveries about our universe.

Scientists have identified three Earth-sized planets orbiting two stars in the TOI-2267 system. Remarkably, planets transit around both stars — a first in astronomy. The system’s compact, cold nature ...

As Europe prepares its next generation of Earth-Observation (EO) missions, a less visible but equally strategic challenge unfolds on the ground — how to manage the growing complexity of satellite ...

Despite the lack of a dedicated mission to the planet, scientists have learned plenty through ground observations and space telescopes Shi En Kim - Reporter A photo of Neptune, taken by the Voyager 2 ...

The Leaf Space team at the Small Satellite Conference 2024 in Utah. TAMPA, Fla. — Italian ground segment service provider Leaf Space has deployed its first ground station with a Ka-band link to meet ...

Astroscale is a 2025 Gizmodo Science Fair winner for developing a satellite designed to rendezvous with space junk, with the goal of capturing it and guiding it toward a fiery grave in Earth’s ...