Astronomers just measured the mass of a free-floating planet without a star for the first time ...

While most planets that we are familiar with stick relatively close to their host star in a predictable orbit, some planets ...

In doing so, they found this orphan is within the same weight class as Saturn, strengthening the case that the galaxy teems ...

This is the provocative question at the heart of an emerging astronomical debate, wherein the discovery of rogue ...

Not every large object in space forms part of a solar system. There are some big objects that exist in isolation in space, without either being a star or orbiting one. One of these, SIMP 0136, wanders ...

The James Webb Space Telescope detected an atmosphere on a lava-covered exoplanet, evidence that small planets close to stars ...

With sapphire waterfalls, lava rain and orbits around dead stars, these distant worlds push the limits of what’s possible.

Using observations from both ground-based telescopes and space instruments, they were able to measure the planet's size and ...

From Earth’s oldest rocks to glowing swamp lights and hidden ocean life, scientists in 2025 uncovered clues beneath our feet ...

From ancient fire-making and dinosaur footprints to planet parades and chimp medicine, 2025 science revealed wonder, surprise ...

Forbes contributors publish independent expert analyses and insights. Leslie Katz covers the intersection of culture, science and tech. A yellowish-orange glow bathes Phainoterra, a planet of dramatic ...

In “Citizen Science in Astronomy (Part 7),” SETI Institute astronomers Dr. Franck Marchis and Dr. Lauren Sgro highlight two rare and compelling discoveries and the crucial role of citizen scientists ...