A new analysis of NASA satellite data shows Africa's Congo rainforest, the second- largest tropical rainforest in the world, has undergone a large-scale decline in greenness over the past decade.
Long before the term "citizen science" was coined, the field of astronomy has benefited from countless men and women who study the sky in their spare time.
Actor Harrison Ford was on location at NASA's Ames Research Center, Mountain View, Calif., last November to film a segment of Showtime's "Years of Living Dangerously" documentary on climate change.
An unpiloted Russian Progress cargo ship left the International Space Station for a two-day test on an upgraded automated rendezvous system.
Today: Extravehicular Activity (EVA) #26 Preparation: In preparation for tomorrow's planned EVA to Remove and Replace (R&R) the failed External (EXT) Multiplexer/Demultiplexer (MDM)2, the crew performed the following tasks:
Today, April 22, 2014 is Earth Day, and what better way to celebrate than taking a look at our home planet from space.