Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but they came close enough to leave a permanent mark on the thin mist of gas that ...

The solar system was formed 4.6 billion years ago by the explosion of a star at the end of its life cycle, according to a groundbreaking study of meteorites. Research suggests a low-mass supernova was ...

Of all the things to worry about, the explosion of our sun is perhaps one of the least pressing. The Earth has seen five ...

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 ...

Our sun, currently in its prime, is expected to shine for another 5 billion years. Eventually, it will transform into a red giant, potentially engulfing inner planets. Afterward, it will become a ...