A volcano on Russia's far eastern Kamchatka Peninsula erupted overnight into Sunday for the first time in at least 400 years. The Krasheninnikov volcano sent ash more than 3.7 miles into the sky, ...

Less than a week after a massive 8.8-magnitude earthquake sparked tsunami warnings throughout the Pacific Ocean, a volcano in far eastern Russia, on Sunday, spewed hot ash miles into the sky, marking ...

Hayli Gubbi in Ethiopia has been dormant for all of recorded history. A long-dormant volcano has just erupted for the first time in recorded history. The Hayli Gubbi volcano in northern Ethiopia's ...

But what would be considered as “ground truth” on a planet where the ground is not visible by the cameras? On Venus, geometry ...