Four planets in the solar system are about to appear in alignment in the night sky. Here's how stargazers will be able to see ...

Barnard’s Star is located just 6 light-years away from us. It is the closest single star to the Sun and the fourth closest ...

Saturn will appear as the third vertex of this planetary triangle, just 2 - 3° from Mercury (roughly the width of two fingers ...

Prior to 2040, the last planetary quintuplet occurred in the year 1186, and according to Uptain, records show that the close grouping of five planets that year "caused near panic among the citizens of ...

Our planet's closest and brightest neighbor will pass approximately between the Earth and sun this week, in what's called an ...

Combining with one other previously confirmed planet, one of our closest stellar neighbors now has a family of four.

The planets are all too hot for life as we know it, but astronomers haven’t given up searching for more planets in Barnard's ...

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

Only the three stars that make up the Alpha Centauri system lie closer to us. The planets newly discovered around Barnard’s ...

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.