For obvious reasons, the Sun’s influence weakens as you get closer to the edge of the solar system. But things might be a lot ...

I/ATLAS arrived fast, bright, and strange. When astronomers spotted it on July 1, 2025, they knew almost immediately this was no ordinary comet.

In the latest research, telescope observations of 3I/ATLAS examine its chemical structure and suggest that it took shape in a ...

An interstellar comet that recently passed through the solar system may have formed as long as 12 billion years ago, making ...

Based on the composition of gases spewed by the icy space rock, researchers estimate that our guest might be up to 12 billion ...

A new study into the 3I/ATLAS interstellar comet points to it having been born as far back as 12 billion years ago in a very ...

Researchers say 3I/ATLAS could be 12 billion years old and has a composition unlike anything in our solar system.

An artist’s impression of 3I/ATLAS is shown as it passes near the Sun, illuminating one side of the comet. On the side of the ...

NASA's James Webb Space Telescope is finding clues that are leading scientists toward the origins of the interstellar comet ...

Exactly where the comet 3I/ATLAS came from within the Milky Way remains a mystery.

Interstellar comet 3I/ATLAS has given astronomers an opportunity they rarely expect to receive. Unlike the countless icy ...

One year ago, on July 1 2025, astronomers discovered a fascinating new object moving through the Solar System. Detected by ...