In 1977, NASA launched the Voyager probes to study the edge of the Solar System and the interstellar medium between the stars ...

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

Astrophysicists are mapping a vast, hidden structure in space that appears to guide matter and radiation along a kind of interstellar highway stretching from our solar neighborhood to distant stars.

Add Yahoo as a preferred source to see more of our stories on Google. Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

The interstellar comet 3I/ATLAS is leaving our solar system. See new photos from a European Space Agency orbiter on its way ...

So it shouldn’t come as a surprise that Harvard astronomer Avi Loeb — who has long posited that mysterious interstellar ...

A mysterious interstellar comet has been taking a tour of our solar system in recent months, garnering intense interest from astronomers and space enthusiasts alike. Comet 3I/ATLAS is only the third ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system. The object is a comet hailing from the direction of the constellation ...

It's probably a comet, but it might be some sort of ancient alien spacecraft or probe. What's for sure is that the mystery surrounding an object known as 3I/ATLAS is becoming both more and ...

At the time of the observations, comet 3I/ATLAS had just passed its perihelion, its closest ever approach to the Sun. While ...

Learn how ALMA observations revealed unusually high levels of methanol in interstellar comet 3I/ATLAS and what the molecule’s chemistry may reveal about how icy bodies form around other stars.

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system. But it may not be around much longer. The otherworldly visitor to ...