A solar explosion called a coronal mass ejection is poised to graze Earth on Friday or Saturday (Jan. 24 or Jan. 25), potentially triggering colorful auroras over the northern U.S.

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

Officially named La Rinconada, its 50,000 inhabitants live between 16,404 feet (5,000 m) and 17,388 feet (5,300 m) above sea level, making it the highest permanent settlement on Earth. Life in La ...

More than half the people on Earth live within 120 miles (193 kilometers) of the ocean, but even those who live nowhere near the sea are dependent on the massive saltwater ecosystem that covers ...

Email your shout-outs to live.lessons@bbc.co.uk with Earth Day as the subject, or get in touch using #BBCLiveLessons. If you are sending in any images or videos that feature children, please ...