Aurora Australis

Aurora Australis

One of the Expedition 40 crew members aboard the International Space Station recorded this colorful image of Aurora Australis on July 15, 2014.

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The Aegean As Seen From Orbit

The Aegean As Seen From Orbit

One of the Expedition 40 crew members aboard the International Space Station photographed this image from an altitude of 225 nautical miles.

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Empty Spacesuits Await The Next EVA

Empty Spacesuits Await The Next EVA

Unoccupied Russian Orlan spacesuits for Russian cosmonauts.

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Italy As Seen From Orbit

Italy As Seen From Orbit

One of the Expedition 40 crew members aboard the International Space Station, flying 225 nautical miles above Earth, recorded this image over southern Italy on Aug. 13, 2014.

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Supreme Saturn

Supreme Saturn

Saturn reigns supreme, encircled by its retinue of rings.

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Zero Gravity Flame

Zero Gravity Flame

This is a close-up image photographed during a run of the Burning and Suppression of Solids (BASS) experiment onboard the Earth-orbiting International Space Station.

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Comet 67P/Churyumov-Gerasimenko From 69 KM

Comet 67P/Churyumov-Gerasimenko From 69 KM

Full-frame NAVCAM image taken on 21 August 2014 from a distance of about 69 km from comet 67P/Churyumov-Gerasimenko.

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Earth: Blue Marble, Eastern Hemisphere

Earth: Blue Marble, Eastern Hemisphere

Of all the planets NASA has explored, none have matched the dynamic complexity of our own. Earth is constantly changing, and NASA are working constantly to explore and understand the planet on scales from local to global.

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Space Station Solar Arrays

Space Station Solar Arrays

Intersecting the thin line of Earth's atmosphere, International Space Station solar array wings are featured in this image photographed by an Expedition 40 crew member on the orbital outpost.

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Comet 67P/Churyumov-Gerasimenko on 18 August 2014

Comet 67P/Churyumov-Gerasimenko on 18 August 2014

Rosetta navigation camera image taken on 18 August 2014 at about 84 km from comet 67P/Churyumov-Gerasimenko. The comet nucleus is about 4 km across.

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More OnOrbit stories from September.