The Sun is a massive ball of hot gases at the center of our solar system. It gives us light, heat, and energy, making life on Earth possible. It's mostly made of hydrogen and helium.

Current and former NASA employees have co-signed a declaration protesting changes at the agency that some say pose a grave ...

The soonest total eclipse will be August 12, 2026. It will only be visible in a sliver of Greenland, Iceland, Spain and ...