The interstellar comet 3I/ATLAS has unveiled a growing tail, a significant development after it initially showed no comet tail. This revelation follows an earlier alarm raised by a Harvard scientist ...

Astronomers study 3I/Atlas as its tail rapidly expands and a strange cosmic radio signal reaches Earth, sparking new debate over its interstellar nature.

CAPE CANAVERAL, Fla. (AP) — Telescope observations reveal a growing tail on the comet that’s visiting from another star. Released Thursday, the pictures taken by the Gemini South telescope in Chile ...

This image composed from multiple exposures and provided by NSF's NOIRLab shows a comet streaking across a star field above the International Gemini Observatory on Cerro Pachon, near La Serena, Chile.

CAPE CANAVERAL, Fla. (AP) — Telescope observations reveal a growing tail on the comet that’s visiting from another star. Released Thursday, the pictures taken by the Gemini South telescope in Chile ...