What would happen if the sun started to dim? Scientists have revealed the terrifying answer to this question, which is the ...

When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.

A fireball lit up the skies over the Great Lakes in the early hours of Sunday and was visible for hundreds of miles.

Our Sun, that steady burning ball of gas that has faithfully illuminated Earth for billions of years, is slowly but ...

Lightning has been seen on other planets in the solar system, in the atmospheres of Jupiter and Saturn. Because Mars is cold ...

ITER project has entered a critical phase: the reactor core is assembled, and each weld will try to recreate solar fusion on Earth.