On 4 September 2024, a small asteroid designated 2024 RW1 entered Earth’s atmosphere above the Philippines. What made this event remarkable wasn’t the impact itself, small asteroids burn up regularly, but the fact that astronomers had spotted it nine hours in advance. It was only the ninth time in recorded history that humans had detected an incoming asteroid before atmospheric entry. The same date also marks the 1985 discovery of buckminsterfullerene, a geodesic sphere of sixty carbon atoms that earned its discoverers a Nobel Prize and changed materials science. In 1999, Poland inaugurated a new longwave radio transmitter to replace the Konstantynów mast, once the tallest structure on Earth, which had collapsed during maintenance eight years earlier. And in 1975, East Timorese refugees hijacked an Australian military aircraft in a desperate bid to reach safety as Indonesian occupation loomed. From planetary defence systems that actually work to carbon molecules shaped like footballs, 4 September is a study in human ingenuity, occasional hubris, and the remarkable things we manage when we’re paying attention.