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A misshapen rocky looking celestial body.

Saturn’s Satellite Helene

Video

Ballooning in the Civil War

June 17, 2011
Disk view of the Sun with one faint prominence visible on the bottom left quadrant of the disk.

Sun - June 17, 2011

Video

The Early Solar System: Dawn at Vesta

June 09, 2011
Disk view of the Sun with a solar flare visible in the bottom right quadrant of the Sun's visible surface.

Sun - June 3, 2011

Disk view of the Sun's surface with multiple prominences and filaments as well as a solar flare in the bottom left quadrant.

Sun - June 2, 2011

Disk view of the Sun's surface featuring a solar flare on the lower left section of disc as well as filaments and prominences throughout the disc.

Sun - June 1, 2011

Disk view of the Sun with visible sunspots on the left side of the visible surface.

Sun - June 1, 2011

Video

Before This Decade is Out: The 50th Anniversary of Kennedy's Declaration

May 31, 2011
Greg Chamitoff, a NASA astronaut, performs a spacewalk outside the International Space Station in his spacesuit.

NASA Astronaut Greg Chamitoff

Partial view of the Sun's surface with an emphasis on two prominences floating away from the surface of the Sun.

Sun - May 26, 2011

Disc view of the Sun, with multiple prominences and filaments present throughout the Sun's visible surface.

Sun - May 25, 2011

Video

Memoirs from an Aviator's Logbook

May 24, 2011
The Space Shuttle Endeavour is docked onto the International Space Station above Earth.

The International Space Station and the Docked Space Shuttle Endeavour

Partial view of the Sun with an emphasis on four prominences of plasma floating away from the Sun.

Sun - May 21, 2011

Video

GE Aviation Lecture: "You Can Do This!"

May 13, 2011