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 ...
When stars like our sun age and enter their "red giant" phase, they may be far more dangerous to their planets than scientists had realised. Using NASA's Transiting Exoplanet Survey Satellite (TESS), ...
The Sun won’t shine forever in its current form. When it runs out of hydrogen, it will expand into a red giant—fundamentally reshaping the Solar System.