Is the sun an only child? Or was it born into a (very, very) big family? The answer would tell us more than just how awkward holiday family reunions can be (if you think yours are bad, imagine how ...

The sun is believed to be 4.6 billion years old, but how long this glorious plasma ball exactly took to form is still unknown. A team of international researchers has found the answer to this question ...

Our Sun formed with hundreds to thousands of sibling stars. These stars have drifted apart over billions of years. Scientists use stellar spectra and orbital data to identify potential siblings. The ...

Those rings of dust may have prevented Earth from growing into a "super-Earth." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Before Earth and ...

Our solar system's planets may have formed at differing times, determined by shock waves flowing from the young sun, one astronomer suggests. This theory posits that Earth is one of the youngest ...

How big it is: 865,000 miles (1.392 million kilometers) across How far away it is: 93 million miles (150 million km) What type of star it is: A yellow dwarf star The sun is the star at the center of ...

It’s nature’s greatest naked-eye sight—and it’s happening tomorrow—but the spectacle of a total solar eclipse could soon be faked in space almost at will if Europe’s Proba-3 mission goes to plan. The ...

A twin star of the Sun may have formed along with our solar system, a new study from the Center for Astrophysics finds. If confirmed, the presence of a second star would explain mysteries of the Solar ...

As a ball of ultra-hot gas, how does the sun rotate? This complex form of rotation drives some fascinating phenomena. When you purchase through links on our site, we may earn an affiliate commission.

The emergence of our solar system could be the result of dwarf galaxy Sagittarius crashing into the Milky Way billions of years ago. New research, based on data from the orbital telescope Gaia, ...