The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...
Artificial intelligence (AI) is continuing to have a disruptive impact on ever more parts of humanity. But what does it mean ...
An interstellar comet known as 3I/ATLAS, which swept past the Sun in 2024, could be a 12‑billion‑year‑old relic from deep ...