In 1959, the Luna 2 probe from the Soviet Union became the very first human-made object to reach our closest celestial neighbor. In the decades since, we have been leaving footprints—both literally ...

Spacecraft beats out Boom Supersonic's XB-1 demonstrator, Wing's drone delivery service, and other nominees.

Jupiter Icy Moons Explorer (JUICE) probe is on its (very long) way to Jupiter, and will finally arrive at the King of Planets ...