The planets closely orbit Barnard’s Star, zipping around their stellar host in a matter of days, compared with the year it takes Earth to complete one orbit around the sun. The outermost planet takes ...

Astronomers have confirmed the existence of four rocky planets orbiting Barnard’s Star, our nearest solitary stellar neighbor just six light-years away. Using ultra-sensitive instruments, scientists ...

According to new simulations, many, even most, planets get ejected from their star early in their history Star Trek ...

Fellipe Abreu/Getty Images The planets are 20% to 30% the mass of Earth and make a full orbit around the sun in days, according to the paper. They are likely rocky planets, rather than gas.

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

NEW YORK (AP) — Venus will pass between the Earth and sun on Saturday during what’s called an inferior conjunction. But don’t plan on seeing the linkup. The sight is extremely difficult to spot ...

The seven planets in the system closely orbit their star, so that if TRAPPIST-1 were in place of our sun in the solar system, the planets surrounding it would all be within the orbit of Mercury ...

Ellipses are defined as curves that surround two focal points. At any point on the ellipse, the sum of the distance to both ...