The orbits of the four inner planets (Mercury, Venus, Earth, Mars) are fully visible, drawn as teal concentric circles around the bright ball of the sun at the center.

An object up to dozens of times the mass of Jupiter flying through our solar system may have disrupted planetary orbits.

If Brown’s hidden world is real, Rubin will almost certainly find it or strong indirect evidence that it exists. “In the ...

Exomoons are a hot topic in the science community, as none have been confirmed with astronomers finding new and creative ways ...

The orbits of the planets around the Sun have been the source for many a scientific debate. Their current orbital properties are well understood but the planetary orbits have evolved and changed ...

The orbits of the planets around the Sun have been the source for many a scientific debate. Their current orbital properties are well understood but the planetary orbits have evolved and changed since ...

Mars has two moons, Phobos and Deimos. Scientists still debate whether these came from asteroids that passed close into Mars' ...

All the planets revolve around it on roughly the same plane ... are thought to have formed closer to the Sun than where their orbits currently reside, while other planets in the process of ...

Many stars in our galaxy exist in pairs. Now scientists are finding clues that our Sun may once have had a companion of its ...