An emotional rescue for America came via the first U.S. artificial satellite. Explorer 1 was boosted into space by the Army ...

Launched in 1958 and silent since the Johnson era, Vanguard 1 is the oldest human-made satellite still orbiting Earth — and a ...

A proposed mission seeks to retrieve Vanguard-1 and display it as an ancient relic of the space age.

In the intense early days of the space race, a small, unusual satellite was launched into space sixty-seven years ago.

A team behind the rescue of two lunar satellites left stranded by a launch anomaly have revealed the challenges they faced in ...

Thousands of software engineers, systems engineers and software developers work for some of the nation’s largest defense ...

As Earth's orbit becomes populated with more crafts and devices, researchers are looking for ways to detect and track potentially dangerous debris that could pierce satellites and space stations.