Inside the Cupola, NASA astronaut Chris Cassidy, an Expedition 36 flight engineer, uses a 400mm lens on a digital still camera to photograph a target of opportunity on Earth some 250 miles below him and the International Space Station. Cassidy has been aboard the orbital outpost since late March and will continue his stay into September.

Inside the Cupola, NASA astronaut Chris Cassidy, International Space Station Expedition 36 flight engineer, uses a lens on a digital still camera to photograph a target of opportunity on Earth some 250 miles below him.

~~Coronal Loops Reveal Magnetic Dance | Magnetic Dance: Solar material traces out giant magnetic fields soaring through the sun to create what's called coronal loops | NASA Goddard Photo and Video~~

~~Coronal Loops Reveal Magnetic Dance Magnetic Dance: Solar material traces out giant magnetic fields soaring through the sun to create what's called coronal loops NASA Goddard Photo and Video~~

Spacewalking Astronaut John Grunsfeld by NASA Goddard Photo and Video, via Flickr

A close-up of Astronaut John Grunsfeld shows the reflection of Astronaut Andrew Feustel, perched on the robotic arm and taking the photo. The pair teamed together on three of the five spacewalks during Servicing Mission 4 in May Space by Nasa®

High Resolution Image of Earth by NASA’s New Suomi NPP Satellite

High Resolution Image of Earth by NASA's New Suomi NPP Satellite

NASA has proclaimed this image the MOST amazing high definition image of Earth ever. This ‘Blue Marble’ image of the Earth was taken from the VIIRS instrument aboard NASA’s most recently launched Earth-observing satellite – Suomi NPP.

Tour of the Moon [NASA] / #science!

Tour of the Moon [NASA] Although the moon has

Tour of the Moon [NASA] Although the moon has. - Tour of the Moon [NASA] Although the moon has remained largely unchanged during human history, our understanding of it and how it has evolved over time has evolved dramatically.

Hemispheric View of Venus by NASA Goddard Photo and Video, via Flickr  color coded to represent elevation (and to make it pretty;)

The hemispheric view of Venus, as revealed by more than a decade of radar investigations culminating in the Magellan mission, is centered at 270 degrees east longitude. Colors represent different elevations.

The arctic - Ponds on the Ocean - photo from NASA, via Flickr.

Coast Guard Cutter Healy, in the midst of their ICESCAPE mission, retrieves supplies for some mid-mission fixes dropped by parachute from a in the Arctic Ocean in this July

A Cosmic Holiday Ornament, Hubble-Style by NASA Goddard Photo and Video, via Flickr

Hubble snaps NGC 5189 The NASA/ESA Hubble Space Telescope celebrates the holiday season with a striking image of the planetary nebula NGC The intricate structure of the stellar eruption looks like a giant and brightly coloured ribbon in space.

City Lights Illuminate the Nile    NASA image acquired October 13, 2012    The Nile River Valley and Delta comprise less than 5 percent of Egypt’s land area, but provide a home to roughly 97 percent of the country’s population. Nothing makes the location of human population clearer than the lights illuminating the valley and delta at night.

City Lights Illuminate the Nile NASA image acquired October 2012 The Nile River Valley and Delta comprise less than 5 percent of Egypt’s land area, but provide a home to roughly 97 percent of the country’s population. Nothing makes the location o

More Than Neil deGrasse Tyson: 10 Equally Awesome Black Astrophysicists You Should Know

Dr Aprille Ericsson, MIT graduate, the first female (and first African-American…

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