Interstellar comet 3I/ATLAS may be 12 billion years old, making it older than our solar system; the James Webb Space Telescope reveals

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

Interstellar Object 3I/ATLAS Changed Color Again, And Shows Signs Of Non-Gravitational Acceleration

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...
What If on MSN

Could capturing an interstellar object unlock secrets of alien worlds?

An unusual visitor has entered our cosmic neighborhood. Scientists call these objects interstellar objects, or ISOs. Unlike ...
Astronomy

Ask Astro: How do astronomers know if an object came from another star?

A: We recognize that an asteroid or comet is interstellar from its trajectory. The trajectory of an object is computed by comparing precise measurements of its changing position on the sky to the ...