Far beyond the eight familiar planets in our solar system, countless bizarre and extreme worlds await discovery — and some ...

Scientists have unearthed facial bones that may belong to a previously unknown human species. The bones, nicknamed "Pink," ...

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

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 ...

Artist's rendering of a potentially habitable super-Earth orbiting a star called HD 20794.Illustration credit: Gabriel Pérez Díaz, SMM (IAC) The ...

Earth' planet named HD 20794 d, which could have conditions suitable for lifeThe planet has a mass six times greater than Earth's and orbits within the habitable zone of a star similar to the ...