Weighing just 3 pounds, Vanguard 1 was also the first satellite to use solar power ... of scientists and engineers who believe its return could offer unprecedented insights into long-term space ...

Vanguard-1 is the second U.S. satellite launched to space. Conceived by the Naval Research Laboratory in 1955, it was designed to test the launch capabilities of a three-stage launch vehicle and the ...

A team of scientists is developing plans to return to Earth the American Vanguard-1 satellite, which spent 67 years in space. Vanguard-1, which is the size of a grapefruit, was launched in March 1958 ...

As the United States waited for Vanguard to re-launch, the Army Ballistic Missile Agency launched Explorer 1, the first U.S. satellite, on January 31, 1958 (see "Then & Now,"). Chris Hagen ...

TEMPO.CO, Jakarta - The satellite Vanguard 1, launched on March 17, 1958, became the oldest man-made satellite still orbiting Earth. After 67 years in space, a group of scientists, aerospace engineers ...