Curiosity While on Parachute, Artist's Concept

Curiosity on Tilt Table with Mast Up

Mars Reconnaissance Orbiter over Pole

Sample Analysis at Mars Instrument, Side Panels Off

Juno Mission to Jupiter (2009 Artist's Concept )

Mars Science Laboratory Atop Its Atlas V

Dawn Orbiting Vesta

Schematic of Laser-Induced Breakdown Spectroscopy

Preparation for Testing of Mars Landing Radar

Explore Mars With Curiosity

Laying the Groundwork for a Rover Test

Artist's Rendition of InSight

Diviner Following Integration to the Lunar Reconnaissance Orbiter (LRO)

Artist’s Concept of the Orbiting Carbon Observatory

ChemCam Mast Unit Being Prepared for Laser Firing

Mars Science Laboratory's Cruise Stage in Test Chamber

Schematic of Sample Analysis at Mars (SAM) Instrument

Aquarius - SAC-D Spacecraft is Prepped for Shipping

Checking Tilt of Lightweight Test Rover

Testing of Mars Landing Radar near Lancaster, Calif.

The Universe, Summed Up in a Squiggly Line

Curiosity's Robotic Arm and Tools

Mars Descent Imager for Curiosity

Curiosity Blasts Ground with Neutrons

GRAIL Flying in Formation (Artist's Concept)

Aquarius at JPL

Final Checks of Aquarius Instrument

Detail Observed from 10 Feet away with Curiosity's ChemCam

Webb Instrument Undergoes Alignment Testing

Inspecting Juno's Radiation Vault

NASA Mars Rover Curiosity at JPL, View from Front Left Corner

Installing Juno's Radiation Vault

Radar Testing for Mars Science Labotatory

Mars Rover Curiosity, Turning in Place

Position Markers in Preparation for Test

Beginning the Journey to the Launch Pad

Shooting Lasers

Mars Science Laboratory Descent Stage

Setting up Juno's Radiation Vault

Bright Days Ahead for Curiosity Mars Rover

Calibration Target on Curiosity for Camera on Rover's Arm

Curiosity at Center of Attention During Test

GRAIL Mission Comes Together

Kepler-22b -- Comfortably Circling within the Habitable Zone

Artist's Concept of Jason 1

Preparing Juno for Environmental Testing

Mars Science Laboratory Spacecraft During Cruise, Artist's Concept

Juno Gets a Taste of Space

Location of Low-Energy Charged Particle Instrument

Spirit Reaches Out at JPL

Probing Brown Dwarf Layers