Scientists discovered tiny jets on the Sun that power both fast and slow solar wind. These jets eject particles and shape ...

Chinese hydroelectric power plans in Tibet threaten to destabilize the Himalayan region’s ecology and politics.

A new atmospheric river is slamming California, including fire-ravaged Los Angeles, where residents are bracing for the possibility of mudslides and landslides.

Atmospheric rivers are long and relatively narrow bands of water vapor that form over an ocean and flow through the sky, ...