A giant, 250,000-mile X-ray cloud has been found around the interstellar comet 3I/ATLAS, baffling experts. Discover why this 'alien' cosmic halo is challenging all known physics and what it means for space science.
A giant, 250,000-mile X-ray cloud has been found around the interstellar comet 3I/ATLAS, baffling experts. Discover why this 'alien' cosmic halo is challenging all known physics and what it means for space science.