NASA’s 3,200-pound Neil Gehrels Swift Observatory has plunged back to Earth after nearly 22 years in orbit, bringing an end to a mission that transformed scientists’ understanding of some of the universe’s most powerful explosions. The space telescope re-entered Earth’s atmosphere over northern Sumatra, Indonesia, on November 4, 2026, after a failed attempt to save…

Farmland, roads and new settlements are spreading across the world, and wildlife is left to find its way through landscapes that people have reshaped. In northeastern Thailand, a study of king cobras, among the largest venomous snakes on Earth, shows what that looks like up close. Seven cobras tracked at the Sakaerat Biosphere Reserve moved…