Space.com on MSN1d
Vanguard 1 is the oldest satellite orbiting Earth. Scientists want to bring it home after 67 years
An emotional rescue for America came via the first U.S. artificial satellite. Explorer 1 was boosted into space by the Army ...
BBC2y
Artificial satellites and orbital motion
Gravity is the force needed to maintain the orbit of planets, asteroids and comets around a star and moons and artificial satellites around a planet. An artificial satellite is a man-made body ...
Hosted on MSN20d
OTD In Space – March 17: U.S. Launches Its Second Satellite, Vanguard 1
On Saint Patrick's Day in 1958, the U.S. Navy launched Vanguard 1, the first solar-powered satellite and the oldest artificial satellite ... More Than 400 Hollywood Names Urge Trump to Not Let ...
Business Insider India8y
The most famous satellites in history have ballooned to epic proportions
More than 58 years have passed since Sputnik 1 became the first artificial satellite to orbit Earth. Launched by the Soviet Union on October 4, 1957, Sputnik 1 consisted of a 23-inch-diameter ...