We asked space explorers at NASA's Jet Propulsion Laboratory to share their favorite NASA image. See what they chose and why in the slideshow below.

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Saturn eclipse of the Sun as seen by the Cassini spacecraft

A mosaic of Saturn's moon Enceladus as captured by the Cassini spacecraft.

Mars Pathfinder and the Sojourner rover on the Red Planet

Margaret Hamilton with a stack code she wrote to help get humans to the Moon

Buzz Aldrin on the Moon

Earth and seen from the surface of the Moon

Viking 1 image of Mars featuring a shadow illustion that looks like a face.

The dwarf planet Ceres and imaged by Dawn

A deer at the JPL security gate

Volcano on Jupiter's Moon Io

Phoenix Lander Descends to Mars

Malaspina Glacier in Alaska

Distant Galaxies in the Universe

NASA Astronaut Ronald McNair

Spirit Rover on Mars

Neptune and its Moon Triton

Earth As a 'Pale Blue Dot'

Stellar Family: The North American Nebula