Space.com noted that most of its payloads remain classified. Space Force said the tests while in a highly elliptical orbit demonstrated the aircraft's "robust maneuver capability." The technique ...

While conducting experiments in a "highly elliptical orbit," the X-37B orbital test vehicle captured a rare image of Earth from high above the African continent. Since launching on its seventh ...

If the skies are clear, skywatchers might catch red planet Mercury in the hour before the sun rises. The moon will reach its perigee on Sunday, the closest point in its elliptical orbit around ...

The Roadster is currently on an elliptical path around the sun, taking it past Venus and Mercury too. It completes one full orbit about every 557 days, and is scheduled to finish its first orbit ...

Mercury has the least circular of the orbits ... which can only be achieved with an elliptical orbit. Thousands of years ago, the ancient Greeks believed all celestial objects orbited around ...

“Starting at 7:51 p.m. CST on February 13, the team completed a 4 minute, 15 second Lunar Orbit Insertion burn with Blue Ghost’s RCS thrusters and main engine to enter an elliptical orbit ...

Mercury has the shortest and fastest orbit around the Sun and experiences dramatic temperature changes as it rotates. It is a world of extremes. Explore facts about our solar system's fastest planet.

A secretive U.S. spaceship has landed after 434 days in orbit. The X-37B Orbital Test Vehicle-7 (OTV-7) - described by U.S. Space Force as a " dynamic unmanned spaceplane" - successfully deorbited and ...

The moon's orbit is elliptical, or oval-shaped ... appearing between Saturn and Mercury in the night sky. Want to see craters and other features on the moon? Our guides to the best telescopes ...