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

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar ...

This diagram shows the hyperbolic trajectory of interstellar comet 3I/ATLAS as it passes through the inner solar system. It will make its closest approach to the Sun, just inside the orbit of Mars ...

It appears our solar system is getting more popular with out-of-towners. Astronomers have found a third interstellar object, something that has origins beyond our own solar system. The object ...

The eight major planets of our Solar System orbit the Sun in the same flat plane, and all at different speeds. Mercury, the closest planet to the Sun, completes an orbit – a year for the planet ...

They used sophisticated methods to identify the object’s orbit. In fact, they identified 2017 OF 201 in 19 different images, captured over seven years.