What if there’s a planet hiding in our solar system, 10 times larger than Earth? While this theory has yet to be confirmed, ...

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

Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...

On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope, located in northern Chile, ...

For only the third time in recorded history, an interstellar object has crossed into our solar system, creating quite the ...

So, while Earth will eventually leave the solar system one way or another, it's not something we will have to worry about for a few billion years yet. Probably. Originally published on Live Science.

In its closest-ever dive into the Sun’s atmosphere, NASA’s Parker Solar Probe has returned stunning new images and data that ...

There may be another world lurking between the orbital lines of our solar system. Astronomers in Japan have published their theory of an “Earth-like planet,” dubbed Planet Nine, that’s ...

A new interstellar object, A11pl3Z, has been discovered in our solar system, marking the third such object to be observed. It ...

Our solar system was long considered a template for all planetary systems. In the last 25 years, however, it has quickly and firmly become an outlier for lacking its own super-Earth. NASA's ...

So, while Earth will eventually leave the solar system one way or another, it's not something we will have to worry about for a few billion years yet. Probably. Originally published on Live Science.

In Liu Cixin's short story "The Wandering Earth (opens in new tab)" (first published in Chinese magazine Science Fiction World in July 2000), Cixin portrays a scenario in which the planet's leaders ...