What makes the new system different is that the planets are bigger. All six fall into a category called “sub-Neptunes,” which are unknown in our solar system but common in others.

This mismatch “doesn’t mean it’s not there, but it means it’s not Planet 9,” Brown said. “I don’t think this planet would have any of the effects on the solar system that we think we ...

The Solar System has just gotten a new official member. Currently, with the name of 2017 OF 201, this is a trans-Neptunian object (TNO). This means that it orbits the Sun further away than Neptune.

Typically, telescopes are synonymous with bringing far-off objects close, but the newest member of the solar system was discovered using wide-field imaging. The Subaru Telescope has spotted a ...

Astronomers capture dawn of new solar system for 1st time Richard Connor with AP 07/20/2025 In a cosmic first, astronomers have spotted the earliest signs of rocky planet formation around a young ...

Earth could be thrown off its orbit and flung into another planet or the Sun, a new study has warned. Passing stars could be the orchestrator of this cosmic instability which could jeopardise our ...

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming "pebbles" around two young stars. These seeds to make new worlds are ...

I also attended that flyby, to complete my vicarious exploration of the solar system. Artist's rendering shows one of NASA's twin Voyager and Voyager 2 spacecraft. (NASA via AP) ...

Even more startling, there's about a 0.3% chance that Mars could collide with another planet or be ejected from the solar system, and a 0.2% chance that Earth itself could face a collision or be ...