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 ...

After nearly half a century of flight, Voyager 1 is closing in on a distance that once belonged purely to thought experiments: one full light-day from Earth. The tiny spacecraft, launched in the late ...

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 ...

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 ...

Space debris—the thousands of pieces of human-made objects abandoned in Earth's orbit—pose a risk to humans when they fall to the ground. To locate possible crash sites, a Johns Hopkins University ...

Two research teams have identified possible landing sites for Luna 9, the first human-made object to safely reach the lunar surface. “One of them is wrong,” an expert said. By Becky Ferreira Becky ...