Astronomers have discovered a new world circling the outer edges of our solar system. Researchers using the Subaru Telescope, located in Hawaii, spotted a small, distant object called 2023 KQ14 ...

An alien comet is now passing through our solar system. Here's what we know Scott SutherlandMeteorologist, Science Writer Published on Jul. 12, 2025, 4:00 AM Updated on Jul. 21, 2025, 6:00 AM ...

A newly discovered object speeding through our solar system is sparking excitement among astronomers because it’s not from around here. Believed to be a comet, the object is only the third ...

A team of international scientists have uncovered compelling visual evidence for a massive, mysterious ninth planet hidden in the outer reaches of our solar system. R. Hurt/California Institute of ...

The researchers looked at the orbits of the Moons to calculate Jupiter's original size, and found that just 3.8 million years after the first solid materials formed in the Solar System, Jupiter ...

Previous research suggests that small rocky bodies called protoplanets formed throughout the solar system, but those found beyond the asteroid belt between Mars and Jupiter came together a bit ...

Currently, our solar system recognizes 8 planets, with Pluto being demoted to a dwarf planet floating in the Kuiper Belt in 2006. Planet Nine's gravitational pull may explain what keeps the icy ...

It Came From Outside Our Solar System, and It Looks Like a Comet 3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy.

If our species manages to hang on for a few billion additional years, we might be in for a wild ride — stars passing in the vicinity of the sun could cause planets in our solar system to collide ...