Have you ever looked at a mountain and wondered why there were trees on one side but none on the other? Or noticed different ...

In fantasy worlds, trees like the Lord of the Rings’ Ents are agile and mobile. In the real world, they’re slow.

New images from the European Space Agency’s Biomass mission show how the satellite uses advanced radar to map flows of carbon through our planet’s most precious and remote ecosystems ...

Choose from 55,362 Mountain Silhouette stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else.

Browse 9,200+ sunrise forest stock illustrations and vector graphics available royalty-free, or search for sunrise forest winter or sunrise forest silhouette to find more great stock images and vector ...