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

Astronomers have identified a vast, cotton-candy–light “super‑puff” world that loops around its star in a wildly misaligned ...

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

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

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

The Saturn-sized celestial object is one of the clearest examples yet of a planet drifting through space without a host star.

Astronomers have spotted a "rogue planet" hurtling through space entirely alone after being "ejected" by its host star. The ...

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

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

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 ...

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 ...