'How planets revolve' is possibly one of the first extraterrestrial phenomena that educators taught students at school. They are told that in this phenomenon, the planets move around the sun in fixed ...

The Mechanics of Earth's Spin Earth rotates once in about 24 hours with respect to the Sun, but once every 23 hours, 56 ...

Earth’s path around the Sun is not a fixed racetrack but a slowly shifting orbit, and those subtle changes have a long ...

NORFOLK, Va. — Each planet in our solar system takes a different amount of time to complete one orbit around the sun. For example, Mercury, being closest to the sun, takes just 88 Earth days to ...

Astronomers have finally found an asteroid keeping pace with Saturn in its orbit around the sun. Such objects, called Trojan asteroids, are already known for the other three giant planets. “Saturn was ...

Researchers present strong evidence for a planet circling two brown dwarfs on a near polar path. The orbit is tilted almost 90 degrees to the pair’s motion. The system lies about 120 light-years from ...

Theoreticians in two different fields defied the common knowledge that planets orbit stars like the Sun. They proposed the possibility of thousands of planets around a supermassive black hole. “With ...

A recent study published in the Monthly Notices of the Royal Astronomical Society reveals an impressive phenomenon concerning ...

Our solar system may have a ninth planet after all, researchers say. The possibility that an additional planet may be hidden far into the solar system was touted more than a century ago. But ...

The disks of dust and gas that surround young stars are the formation sites of planets. New images from the Atacama Large Millimeter/submillimeter Array (ALMA) reveal never-before-seen details in the ...