Massive interstellar object 3I/ATLAS, larger than Manhattan, shows unusual glow pattern and planetary alignment that Harvard physicist calls potentially technological.

Take a deep breath. Reports that interstellar comet 3I/ATLAS is breaking apart have been greatly exaggerated – and radio signals received don't mean the object is an alien probe. In fact, quite the ...

The United States is stepping back from the most direct test yet of possible alien biology on Mars just as new telescopes and probes are racing ahead to hunt for life light‑years away. Lawmakers have ...