Earth has a new friend — and it's been waiting for us to notice it for decades. In a new study published in the journal ...

As with many big space stories, 3I/ATLAS is getting a fair share of attention as well as some more controversial theories ...

A striking new image of the strange interstellar object 3I/ATLAS has revealed it is growing a tail, offering more proof that ...

The Earth stands alone in the solar system as a habitable world, as far as we know. But that doesn’t mean we don’t get ...

The Earth has a new follower. Astronomers recently discovered a tiny quasi-moon that they believe has been orbiting the sun alongside the Earth for decades. The new quasi-moon, which is being called ...

NASA has responded to speculation that mysterious interstellar object 3I/ATLAS is actually an alien starship preparing to invade Earth.

Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without being gravitationally tied to Earth ...

Asteroid 2025 FA22, measuring up to 951 feet across, will make a close approach to Earth early Thursday according to NASA ...

The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought experiment to it, highlighting everything about it that might align with a hypothetical alien spacecraft.

An asteroid the size of a skyscraper is approaching Earth at a sprightly 24,136 miles per hour—and will be at its closest to ...

Whenever astronomers detect something new moving through our region of space, like an interstellar object or an unusual ...

Stargazers can tune in to the Virtual Telescope Project's YouTube stream beginning at 11 p.m. EDT on Sept. 17 (3:00 GMT Sept.