That 'alien spacecraft' is just a comet

Technology Nov 12, 2025

Remember all that buzz about a possible alien spacecraft flying through our solar system? Turns out, 3I/ATLAS is just a really interesting comet.
On October 24, 2025, astronomers using South Africa's MeerKAT telescope picked up natural radio signals—specifically hydroxyl emissions—that are classic signs of a comet losing ice as it travels.

A rare interstellar visitor

Even though it's not aliens, this comet is still a big deal. It's only the third interstellar object ever spotted and might even be older than our solar system.
Scientists are fascinated by its unusual mix of carbon dioxide and water, plus something called "extreme negative polarization," which hints at a whole new kind of comet.
There's still plenty to learn from this cosmic visitor!