When 3I/ATLAS swept past the sun in late October 2025, it became only the third confirmed visitor from interstellar space ...

Astrophysicists are mapping a vast, hidden structure in the gas around the Sun that behaves like a tunnel carved through ...

Comet 3I/ATLAS was discovered on July 1, 2025, by the NASA-funded ATLAS telescope in Rio Hurtado, Chile and was quickly ...

The Hubble Space Telescope has captured a new image of the interstellar comet 3I/ATLAS. 3I/ATLAS is the third-ever object discovered that originated from outside our solar system. The comet is not a ...

Comet 3I/ATLAS was expected to come within 130 million miles of the sun on Oct. 30. For the time being, 3I/ATLAS will remain on the opposite side of the sun from Earth, making it impossible to observe ...

A cosmic traveler from beyond our solar system is making its closest approach to Earth this week, offering astronomers and stargazers a fleeting opportunity to witness a visitor from another star ...

Avi Loeb says interstellar objects such as 3I/ATLAS could carry time capsules into deep space faster than spacecraft built with 1970s technology ...

The Manhattan-size interstellar object 3I/ATLAS will buzz past Mars this week — making its closest pass to any planet on its route as scientists are rushing to coordinate craft to observe the ...

The interstellar comet 3I/ATLAS is set to make its closest approach to Earth in December. 3I/ATLAS is the third-ever discovered object confirmed to have originated from outside our solar system. While ...

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New images reveal the Manhattan-sized interstellar object 3I/ATLAS has started to sport a tail, indicating that it could possibly be a “maneuvering” alien craft, one Harvard scientist suggested. After ...

In 1977, two spacecraft, Voyager 1 and Voyager 2, launched toward the unknown. Nearly fifty years later, they remain alive at the edge of interstellar space, still whispering faint signals back to ...