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 ...

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 ...