Most stars in the cosmos are small, cool red dwarfs, yet the only intelligent life we know orbits a relatively rare yellow ...

Shutterstock The red sky paradox is a difficult problem for astronomers. On the one hand, we know for certain that life ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Like a family in which short parents have tall children, a tiny red dwarf star is defying our ...

Within just 50 light-years from Earth, there are about 1,560 stars, likely orbited by several thousand planets. About a thousand of these extrasolar planets — known as exoplanets — may be rocky and ...

People always want to know what will happen to Earth when the sun eventually swells up as a red giant. For one thing, the expanding sun will turn the inner planets into cinders. It will almost ...

The sun is the biggest object in the solar system; at about 865,000 miles (1.4 million kilometers) across, it's more than 100 times wider than Earth. Despite being enormous, our star is often called a ...