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100 Percent Coverage
100 Percent Coverage

At the very end of 2012, MESSENGER obtained the final image needed to view 100% of Mercury's surface under daylight…

Through the Ages
Through the Ages

This mosaic was created by combining two images that were taken 96 seconds apart. The MESSENGER spacecraft has to be…

Dark and Explosive?
Dark and Explosive?

This high-resolution image shows a region of the southern rim of the large Caloris basin. In the center is an…

Where is MESSENGER?
Where is MESSENGER?

"Where is MESSENGER?" is a longtime section on our website, but last week this feature got an added capability. Using…

Astronaut Chris Cassidy With Capillary Flow Experiment
Astronaut Chris Cassidy With Capillary Flow Experiment

ISS036-E-003225 (22 May 2013) -- NASA astronaut Chris Cassidy, Expedition 36 flight engineer, works on the Capillary Flow Experiment aboard…

Astronaut Chris Cassidy With Capillary Flow Experiment
Astronaut Chris Cassidy With Capillary Flow Experiment

ISS036-E-003194 (22 May 2013) -- NASA astronaut Chris Cassidy, Expedition 36 flight engineer, works on the Capillary Flow Experiment aboard…

Astronaut Chris Cassidy Checks Out Medical Gear
Astronaut Chris Cassidy Checks Out Medical Gear

ISS036-E-003301 (22 May 2013) -- In the Destiny lab aboard the International Space Station, NASA astronaut Chris Cassidy, Expedition 36…

Sun in ‘Starburst’ Mode
Sun in ‘Starburst’ Mode

ISS036-E-002224 (21 May 2013) -- The sun is captured in a "starburst" mode over Earth's horizon by one of the…

Cosmonaut Fyodor Yurchikhin in Unity Node
Cosmonaut Fyodor Yurchikhin in Unity Node

ISS036-E-005323 (30 May 2013) -- Russian cosmonaut Fyodor Yurchikhin, Expedition 36 flight engineer and assigned Expedition 37 commander, enters data…

SPHERES Experiment on Station
SPHERES Experiment on Station

ISS036-E-003308(23 May 2013) -- Onboard the International Space Station, Expedition 36 Flight Engineer Chris Cassidy, NASA astronaut, watches from just…