Outer Space

“Ghostly” neutrinos help us see our Milky Way as never before
Why aliens are likely to be AI
5 revolutionary cosmic ideas that turned out to be wrong
Time has some fundamental differences from every other dimension
NASA may have accidentally killed the only life we ever found on Mars 50 years ago
World’s oldest trees reveal the largest solar storm in history
Astronomers use dead stars to measure gravitational waves produced by ancient black holes
How Mars lost its magnetic field — and then its oceans
A comet impact 13,000 years ago might have wiped out megafauna
How the world’s most sensitive yardstick reveals secrets of the universe