Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

She mapped our solar system's "alternate fate" had it housed an extra planet between Mars and Jupiter instead of the existing asteroid belt. ... and many systems contain super-Earth planets.

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

There's something big missing from our solar system — and that may be a good thing. Planetary scientists recently simulated an alternate version of our solar system: one with a super-Earth ...

Our Solar System hasn’t always had the arrangement of planets we see today. Past iterations put other planets through the wringer, and some of them got booted — including a long-lost alternate ...

A fascinating glimpse into how a solar system like our own is born has been revealed with the detection of planet-forming ...

The solar system is made up of the Earth, the sun and the rest of the planets. Within the system, the planets rotate around the sun in an anticlockwise direction.

When it comes to making Earth more habitable, researchers work extra hard. Therefore, researchers at the University of California, Riverside (UCR) has created an alternative solar system ...

Launched on September 5th, 1977, the spacecraft reached Neptune, the outer sentinel of the Solar System, over a decade later. An artist's impression of the Voyager 1 space probe flying past Saturn ...

From Mercury to Pluto (and maybe even Planet Nine), here are some of 2023's most intriguing discoveries about the planets, moons and other bodies in our solar system.