In space Samantha Cristoforetti honors Leonard Nimoy/Spock by continuing the Vulcan science officer tradition on ISS. Imagery by Michael Okuda.
International Space Station astronaut Terry Virts (@AstroTerry) tweeted this image of a Vulcan hand salute from orbit as a tribute to actor Leonard Nimoy, who died on Friday, Feb. 27, 2015.
True color look at the contiguous US from Suomi NPP on 26 February 2015. Larger image
Pour batter onto a griddle and watch the mixture spread out into a round-shaped pancake. The movement is similar to the flow of piedmont glaciers, which form when ice spills from a steep valley onto a relatively flat plain.
This Envisat image captures Asia's diverse topography, altitude and climate with the snow-sprinkled Himalayan Mountains marking the barrier between the peaks of the Tibetan Plateau (top) in Central Asia and the plains of Nepal, Buthan and India in the Indian subcontinent.
NASA's Terra satellite captured an image of the snow-covered eastern U.S. that looks like the states have been sitting in a freezer.
Sam Cristoforetti @AstroSamantha Follow the Orange river into the ocean. It marks the border between #SouthAfrica and #Namibia. #HelloEarth
Sam Cristoforetti @AstroSamantha Hello #Ethiopia! A glimpse back at Lake Tana, the source of the Blue Nile.
Earth view taken by US Astronaut Terry Virts, Flight Engineer for Expedition 42 on the International Space Station Jan. 31, 2014.
Terry W. Virts @AstroTerry Feb 8 Enormous shadows cast hundreds of miles from these clouds