
NASA's Mars Science Laboratory rover Curiosity appears as a bluish dot near the lower right corner of this enhanced-color view…

NASA engineers installed a 3-D printed rocket injector in a subscale RS-25 engine model, then hot-fired the engine to nearly…

A computer tomography scan is performed to ensure that a rocket injector was fabricated according to design.

Materials engineers made this one-piece rocket engine injector in just 40 hours in a sophisticated 3-D printing machine at the…

Propulsion engineer Sandra Greene, left, and test engineer Cynthia Sprader recently completed a series of test firings at the Marshall…

A fisheye lens attached to an electronic still camera was used to capture this image of NASA astronaut Karen Nyberg,…

NASA astronaut Chris Cassidy, Expedition 36 flight engineer, uses a sewing kit to repair a glove in the Tranquility node…

NASA astronaut Karen Nyberg, Expedition 36 flight engineer, performs a remove and replace of the Oxygen Generation System Hydrogen Sensor…

A fisheye lens attached to an electronic still camera was used to capture this image of the International Space Station’s…

These images from NASA's Spitzer Space Telescope of C/2012 S1 (comet ISON) were taken on June 13, when ISON was…