from its current elliptical high Earth orbit, while using minimal fuel, Space Force officials said. Once in a lower and more circular orbit, the space plane will then jettison its service module ...

This follows the failure of another satellite from the same series that may have been due to a meteoroid impact.

X-37B started executing a series of aerobraking maneuvers to change from a highly elliptical orbit to a lower orbit.

Gravitational attraction provides the centripetal force needed to keep a planet ... An object moving in a circular orbit at a constant speed has a changing velocity. This is because velocity ...

Engaging articles, amazing illustrations & exclusive interviews Issues delivered straight to your door or device ...

Gravity provides the force needed to maintain stable orbit of both planets around a star and also of moons and artificial satellites around a planet. For an object to remain in a steady, circular ...