An interstellar comet spotted by NASA is headed for our solar system, showing up near Earth later this year, but it's another ...

Confirmed as an alien comet, new observations have given us a much better idea of how large this interstellar object actually ...

NASA's Hubble Space Telescope got an up-close look at a headline-grabbing object known as 3I/ATLAS that has wandered into ...

Of course, 3I/ATLAS is no ordinary comet. Discovered on July 1, 2025 by the Asteroid Terrestrial-impact Last Alert System ...

The latest observations of 3I/ATLAS suggest it resembles comets from the outer reaches of our solar system, but may be ...

Scientists are exploring various proposals to repurpose existing spacecraft in order to chase after the interstellar object ...

Hubble telescope captures third interstellar visitor 3I/ATLAS showing active dust coma racing through solar system.

The long-serving space telescope saw the third interloper to enter the solar system from beyond its limits late on Monday ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" alien technology.

NPR's Ari Shapiro talks with astronomer David Jewitt about what we can learn from the third interstellar object to have ...

No one knows where the comet came from. It’s like glimpsing a rifle bullet for a thousandth of a second,” said David Jewitt, ...

Juno would offer ~20-24x better angular resolution due to proximity (distance ratio ~24:1), enabling finer details of ...