The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

This may explain the strange properties of the orbits of our solar system's planets, which are not quite perfectly circular, and all lie on slightly different planes. NASA artist’s conception of ...

An event called a "ring plane crossing" will occur between Saturn and Earth on March 23, 2025, when Saturn's rings will ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Stock illustration of all the solar system's planets. Mars, Venus, Jupiter, Saturn, Uranus and Neptune will be visible all at once this month. Stock illustration of all the solar system's planets.

The OSIRIS-REx mission returned to the sample to Earth in September of 2023, and these studies show that it contains amino ...

She mapped our solar system's "alternate fate" had it housed ... how much a planet's orbit deviates from a true circle. Obliquity influences the intensity of temperature in each season: greater ...