Researchers present strong evidence for a planet circling two brown dwarfs on a near polar path. The orbit is tilted almost ...

The moon, our closest celestial neighbor, has long been a source of fascination and mystery. Despite numerous missions and ...

The November 2025 supermoon will appear up to 30 percent brighter than the dimmest full moon - it's the closest the full moon ...

Earth's orbit is an ellipse, not a perfect circle. Earth's distance from the Sun varies by about 3 million miles throughout the year. Earth's orbit's semimajor axis is approximately 93 million miles.

A super-Earth, HD 20794 d, has been confirmed within a habitable zone 20 light years from Earth. The planet, first detected in 2022, has a mass six times that of Earth and orbits a sun-like star.

The moon's elliptical orbit brings it 14% closer to Earth, creating a spectacular supermoon that's 30% brighter than normal.

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. This article is more than 4 years old. The Earth, moving in its orbit ...