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 ...

A small asteroid has been quietly following Earth’s orbit for decades—unseen, unbothered and, until recently, completely ...

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

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 visitors, most often in the form of (usually harmless) asteroids. Some even ...

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

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 us in two days' time. The space rock—dubbed "2025 FA22"—is a sizeable 520 ...

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

Asteroid 2025 FA22, significantly larger than Delhi's Qutub Minar, will make a close approach to Earth on September 18, 2025.

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.

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.

Harvard astrophysicist Avi Loeb and Congresswoman Anna Paulina Luna are calling for greater monitoring of 3I/ATLAS which ...

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