A tsunami triggered by the explosive eruption of the underwater Tonga volcano in the Pacific Ocean slammed the shoreline of the Pacific nation Saturday (Jan. 15).
A new animation of Earth shows vegetation taking up and releasing carbon in sync with the seasons.
The Perseverance Mars rover is awaiting orders after its sampling apparatus became clogged by pebble-size debris.
Other factors, including genetics, also influence one's chance of developing multiple sclerosis.