Why do all planets in our solar system orbit the Sun the same way? This documentary unravels the cosmic forces, from the ...

Earth and the sun in our solar system - Drpixel/Getty Images When you see art of our solar system as the planet orbit the sun, you may notice that Earth's orbit has a tilt. It is not a perfect circle.

The post New Research Suggests There Are Numerous “Dark” Planetary Systems Out There That Never Had A Star To Orbit So They ...

How does a planet’s size influence its orbit around its parent star? This is what a recent study published in the Proceedings of the National Academy of Sciences hopes to address as a team of ...

Warm Jupiters are rewriting the rules of planet formation - showing eccentric orbits that stay strangely aligned with their stars.

In the remote outer reaches of planetary systems, far beyond the orbit of known planets, enormous and mysterious worlds silently loop around their stars. Some drift as far as 10,000 times the distance ...

Short-period comets get close to the sun much more often than their long-period kin, and every time they do, they deplete ...

Two decently bright comets that share a superficial resemblance are gracing our skies right now, in fact: C/2025 A6 (Lemmon) ...

Earth will reach perihelion at 09:00 Universal Time on Saturday, January 4, 2025, the closest point to the sun in its annual, slightly elliptical orbit. The word comes from the Greek words peri (near) ...

Astronomers are investigating a strange class of exoplanets known as eccentric warm Jupiters — massive gas giants that orbit ...