Did you know our solar system might have had an extra planet? Scientists believe a mysterious ninth planet once existed but ...

More than 1 million "interstellar objects" the size of the Statue of Liberty could be drifting unseen in the outer solar ...

The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

In January 2025, Venus, Mars, Jupiter, Saturn, Uranus and Neptune were all visible in the night sky. And in February, 2025, ...

The European Space Agency (ESA) is ready to guide the ESA/NASA Solar Orbiter spacecraft through its closest encounter with ...

Ever since Isaac Newton famously talked about gravity, its dominance as a force in our solar system has been well known. It's responsible for the orbits of the planets and their satellites ...

Planet demographics reveal a puzzling lack of worlds in a certain size range throughout the galaxy F or centuries our solar ...

Sure, they’re particles and rocks, but they’re still a fascinatingly long way from home. Alpha Centauri is the star system ...

Comets without tails, called dark comets, are a newly discovered space object. Now, astronomers know they come in 2 classes.

SPACE (KXAN) — A star flying through the night sky may be the fastest-moving solar system ... determined. Gravity holes: How UT’s experimental mission uncovered secrets of our planet In ...

A star system has been discovered to be moving at an estimated 1.2 million miles per hour, making it possibly the fastest moving solar system in our galaxy.

Predictions are uncertain, but the solar system may be pushed farther from the galactic core or even ejected entirely from ...