In the dense, glittering heart of our galaxy, a cosmic drama is playing out that puts our own quiet solar system to shame. While the night sky above Britain might seem serene, the latest visitor to ...

November 24, 2025 • Our annual reading guide returns with 380+ new titles handpicked by NPR staff and trusted critics. Find 13 years of recommendations all in one place — that's more than 4,000 great ...

Discovered on July 1, 2025 by the ATLAS survey telescope in Chile, 3I/ATLAS — the third confirmed interstellar object after 1I/ʻOumuamua and 2I/Borisov — hurtled into our solar system at an inbound ...

Comet 3I/ATLAS, the third interstellar object ever detected, reached its closest point to Earth overnight from Thursday to Friday (Dec. 18 to 19), and it remains in a good viewing position tonight.