The Solar System consists of planets and their satellites; numerous comets, asteroids, and meteoroids; and the interplanetary medium. Our Solar System has numerous natural satellite.

Wibbly Wobbly Researchers now believe that Planet Nine — the large, distant, and still-hypothetical planet at the edge of our solar system — could be responsible for the Sun’s unusual tilt.

China's Chang'e-6 lunar probe looks set to begin its historic journey back to Earth from the moon's far side after collecting samples that scientists expect will help answer key questions about ...