Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Astronomers may have demoted Pluto from full-fledged planet to dwarf status, but evidence suggests the solar system may still ...

Astronomers have directly spotted a rare young planet, WISPIT 2b, still forming within the gap of a dusty ringed disk around ...

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints ...

When 1I/'Oumuamua was first spotted in 2017, astronomers quickly determined that it came from outside the solar system. But ...

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

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...

A Jupiter-like planet has been found orbiting a young sun-like star in a solar system far away in what is a potentially ...

Since the first discovery of planets beyond the solar system in 1995, more than 6,000 exoplanets have been identified. Many ...

Seismic data collected by the NASA Insight lander point to huge foreign objects lodged in the mantle of Mars from billions of ...