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 ...

On Aug. 11, 1960, part of the Discoverer 13 satellite became the first human-made object to be recovered from Earth's orbit. The United States Department of Defense launched the mission as part of the ...

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 ...

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 ...

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 ...

High up in Earth's orbit, millions of human-made objects large and small are flying at speeds of over 15,000 miles per hour. The objects, which range from inactive satellites to fragments of equipment ...