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 ...

On October 4, 1957, Earth received its first artificial satellite companion, Sputnik 1. The Soviet Union packed its celestial ...

Kymeta flat panel antennas can connect to satellites in multiple orbits. Credit: Kymeta In the past few weeks European governments have been calling and asking detailed questions about Kymeta’s ...

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

A trio of classified Russian satellites, called Kosmos, has sparked intrigue in space-tracking circles after an unidentified ...

The ongoing surge of greenhouse gas emissions in the near-Earth environment could cause dramatic declines in the number of satellites orbiting the planet by the end of the century, a new study has ...