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 ...

Earth has a newly discovered—albeit temporary—companion in its journey around the sun. In research published this month in ...

wide and could veer close to Mars without posing any threat to Earth. Now, researchers assessing images captured by the ...

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 ...

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.

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

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 ...

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.

The arrival of mini moon could draw the attention of private companies and agencies focused on asteroid mining ...

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