These fluid, watery works will have you jonesing for summer

Stunning photos of Earth from space by the Canadian astronaut

Swiss artist takes on climate change in playful photo series

Backward thinking poses a threat to a wind-energy tax credit that's helping to wean the country off fossil fuels

So why are we treating it so badly?

Surreal images appear straight from the pages of a fairy tale

Clear polymer solar cells could cover skyscrapers and tablets