"The formation of planetary systems is not exclusive to stars but might also work around lonely starless worlds." ...

NASA's Voyager probes have reached a mysterious boundary at the edge of the solar system, uncovering a searing "wall" hotter ...

Its inclined orbit challenges current models of the outer Solar System. Discovered by an international team, this object ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

Astronomers have discovered a new exoplanet that may be habitable 35 light-years from Earth. Named L 98-59 f, it joins four ...

The newly discovered world — a "sednoid" — challenges what planetary scientists thought they knew about the edge of the solar ...

A rare celestial object beyond Neptune, 2020 VN40, moves in sync with Neptune, offering new insights into the outer solar system and fueling the search for Planet Nin ...

An icy object in perfect sync with Neptune reveals new details about planetary migration and unseen bodies far beyond the Kuiper Belt.

Pluto reaches opposition and the Moon waxes to First Quarter as shooting stars streak through the sky this week.

Every once in a while, space gives us something totally unexpected. Well this time, the solar system is surprising us with a ...