Mar. 11, 2025 — A new study presents a compelling new model for the formation of super-Earths and mini-Neptunes -- planets that are 1 to 4 times the size of Earth and among the most common in ...

IT’S been nearly 40 years since the first planet outside of our Solar System was discovered. Since then, more than 5,800 weird and wonderful worlds across 4,300 planetary systems have been ...

With an orbit of 647 days, HD 20794 d is similar to Mars in our solar system. However, its orbit around the star is highly ...

As it orbits its star, it moves close enough at one point to experience extreme heat, similar to Venus’s temperature. But at its farthest point, the planet is nearly twice the distance from Earth to ...

Even on its dark side, HD 189733 b reaches temperatures north ... All you need to know about planets in our solar system Our solar system is made up of nine planets with Earth the third closest ...

The planet is about six times more massive than Earth and could be rocky, offering a unique opportunity to study a heavier ...

A "Blood Moon" will bathe a large swathe of the world in red light overnight Thursday during a rare total lunar eclipse.