The origin of the differing tilts in the orbits of the planets in our solar system may have been revealed through the ...

Does our Solar System have 9 planets or only 8? Astronomers have gone back and forth on that a lot, with Pluto now being ...

The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

The textbook picture of how planets form—serene, flat disks of cosmic dust—has just received a significant cosmic twist.

Exoplanets—worlds orbiting distant stars—were once only theory, until scientists found the first evidence beyond our solar ...

Over four billion years ago, the solar system was a wild and dangerous place. Swirling clouds of dust and gas slowly turned ...

Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities.

A team of astronomers at the University of Arizona played an integral role in uncovering a baby planet with a pretty cute name: WISPIT 2b.

Astronomers have discovered a brand new type of planet outside our solar system that, even in its infancy, is already bigger ...

The textbook picture of how planets form – serene, flat discs of cosmic dust – has just received a significant cosmic twist.

Jupiter and Venus, the two brightest planets in our solar system, should be widely visible for much of August in Florida and the United States.