An asteroid named 2025 PN7 has been in quasi-orbit of Earth for approximately 60 years. It's expected to stay there for ...

The vast majority of exoplanets that have been discovered are within star systems broadly similar to our solar system: one (or sometimes two or more) stars at the center, with planets orbiting at a ...

In our Solar System, the planetary orbits all have a similar orientation. Their orbital planes vary by a few degrees, but roughly the planets all orbit in the same direction. This invariable plane, as ...

An ALMA telescope image shows two potential exoplanet bodies that appear to orbit a star on the same orbit. Credit: ALMA (ESO / NAOJ / NRAO) / Balsalobre-Ruza et al. Astronomers think they've found ...

In a solar system far, far away, astronomers have discovered evidence of possible "sibling" planets sharing the same orbit. The researchers detected a cloud of debris in the same orbital path as an ...

In a real-life twist on Star Wars' Tatooine—a harsh desert planet with twin suns and a criminal underbelly—astronomers have found a bizarre new world that orbits two stars at a perfect right angle.

The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared away other objects ...

"Co-orbital planets are 'fossils' of the planetary formation processes; at present, they are like unicorns." When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Astronomers reported Wednesday the discovery of what could be two planets sharing the same orbit around their star.They said it’s the strongest evidence yet of this bizarre cosmic pairing, long ...