
Van Allen Probes Orbit Among Earth’s Radiation Belts

Scientists have discovered a massive particle accelerator in the heart of one of the harshest regions of near-Earth space, a…

A technician inspects the completely assembled Chandra X-ray Observatory, managed by the Marshall Space Flight Center in Huntsville, Ala.

This is an artist’s depiction of NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) observatory in space with the moon…

This is an artist’s depiction of NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) observatory in space with Earth in…

This is an artist’s depiction of NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE) observatory as it approaches lunar orbit.

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

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

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

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