Webb telescope discovered a bizarre exoplanet with carbon atmosphere, no hydrogen, orbiting a super-dense spinning star.

Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

The orbits of the planets around the sun have been the source for many a scientific debate. Their current orbital properties are well understood but the planetary orbits have evolved and changed since ...

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet between the ...

New simulations examine whether the seven planets in the TRAPPIST-1 system could host moons, showing that only small, close-orbiting moons could remain stable over long periods ...

This year NASA unveiled new discoveries beyond our solar system, the count has surpassed 6,000, with several thousands more ...

Astronomers at Princeton University have uncovered evidence that the outer solar system is more structured than long believed ...

A lonely world the size of Saturn is drifting through the Milky Way with no star to warm it, and 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 ...

Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...

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