The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to know. Good morning, Space Fans! As of today, we are T-2 days until the ...

Astrophysicists are mapping a vast, hidden structure in space that appears to guide matter and radiation along a kind of interstellar highway stretching from our solar neighborhood to distant stars.

Astrophysicist Avi Loeb has highlighted a set of perplexing anomalies in the interstellar object 3I/ATLAS, suggesting that some of our traditional ideas about comets, and perhaps even fundamental ...