A New Science Officer on the Space Station

A New Science Officer on the Space Station

In space Samantha Cristoforetti honors Leonard Nimoy/Spock by continuing the Vulcan science officer tradition on ISS. Imagery by Michael Okuda.

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Astronaut Salutes Leonard Nimoy From Orbit

Astronaut Salutes Leonard Nimoy From Orbit

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.

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Suomi NPP Looks at America From Orbit

Suomi NPP Looks at America From Orbit

True color look at the contiguous US from Suomi NPP on 26 February 2015. Larger image

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Elephant Foot Glacier As Seen From Orbit

Elephant Foot Glacier As Seen From Orbit

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.

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Envisat Image of Vegetation in the Himalayas

Envisat Image of Vegetation in the Himalayas

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.

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United States Deep Freeze Viewed From Space

United States Deep Freeze Viewed From Space

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.

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Africa's Orange River As Seen From Orbit

Africa's Orange River As Seen From Orbit

Sam Cristoforetti @AstroSamantha Follow the Orange river into the ocean. It marks the border between #SouthAfrica and #Namibia. #HelloEarth

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Lake Tana, the Source of the Blue Nile, As Seen From Orbit

Lake Tana, the Source of the Blue Nile, As Seen From Orbit

Sam Cristoforetti @AstroSamantha Hello #Ethiopia! A glimpse back at Lake Tana, the source of the Blue Nile.

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Looking Out At Earth's Horizon

Looking Out At Earth's Horizon

Earth view taken by US Astronaut Terry Virts, Flight Engineer for Expedition 42 on the International Space Station Jan. 31, 2014.

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Seeing Enormous Cloud Shadows From Orbit

Seeing Enormous Cloud Shadows From Orbit

Terry W. Virts ‏@AstroTerry Feb 8 Enormous shadows cast hundreds of miles from these clouds

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More OnOrbit stories from March.