In late 2026, a spacecraft launched in the 1970s will reach a distance from our planet that once belonged purely to science fiction: one full light-day from Earth. When Voyager 1 crosses that ...

As Voyager becomes the first human-made object to enter interstellar space, it also carries the first human-made mixtape destined for such depths of the universe. A recent article in Voice of America ...

When NASA crashed a spacecraft into the asteroid moonlet Dimorphos in 2022, it altered both Dimorphos' orbit around its parent asteroid, Didymos, and the two objects' orbit around the sun, according ...