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APOD: 2017 April 3 – Saturn in Infrared from Cassini
APOD: 2017 April 3 – Saturn in Infrared from Cassini

APOD Science APOD APOD: 2017 April 3 – Saturn… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…

APOD: 2017 April 2 – NGC 602 and Beyond
APOD: 2017 April 2 – NGC 602 and Beyond

APOD Science APOD APOD: 2017 April 2 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss  …

APOD: 2017 April 1 – Split the Universe
APOD: 2017 April 1 – Split the Universe

APOD Science APOD APOD: 2017 April 1 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss  …

Station Solar Arrays
Station Solar Arrays

This angled image of the ISS Solar Arrays frames the Earth scene taken by astronauts of Expedition 50.

Fyodor Yurchikhin and Jack Fischer Start Final Qualification Exams
Fyodor Yurchikhin and Jack Fischer Start Final Qualification Exams

Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) report to Russian state…

Fyodor Yurchikhin and Jack Fischer Start Final Qualification Exams
Fyodor Yurchikhin and Jack Fischer Start Final Qualification Exams

Expedition 51 crew members Fyodor Yurchikhin and Jack Fischer.

Fyodor Yurchikhin and Jack Fischer Pose in Front Soyuz Mockup
Fyodor Yurchikhin and Jack Fischer Pose in Front Soyuz Mockup

Expedition 51 crew members Fyodor Yurchikhin and Jack Fischer.

Fyodor Yurchikhin and Jack Fischer Pose in Front Soyuz Mockup
Fyodor Yurchikhin and Jack Fischer Pose in Front Soyuz Mockup

Expedition 51 crew members Fyodor Yurchikhin and Jack Fischer.

Measuring Mars’ Atmosphere Loss
Measuring Mars’ Atmosphere Loss

MAVEN scientists to determined that the majority of the planet's air was lost to space.

Dr. Nancy Grace Roman, Astronomer
Dr. Nancy Grace Roman, Astronomer

Dr. Nancy Grace Roman is shown with a model of the Orbiting Solar Observatory (OSO) in 1962. She was the…