
Explorer 1 was the first U.S. satellite and the first satellite to carry science instruments. The satellite was launched on…

Space-- it seems--can get rather competitive.

NFAC 80-foot-by-120-foot wind tunnel drive fans.Image credit: NASA Ames/Tom Trower

F/A-18 High Alpha fighter testing high angle-of-attack aerodynamics in the NFAC 80-foot-by-120-foot test section. Image credit: NASA Ames/Tom Trower

Tiltrotor aircraft in 40-foot-by-80-foot test section. The vehicle is in take-off (helicopter) mode.Image credit: NASA Ames/Bob Carnahan

An aerial view of the National Full-scale Aerodynamics Complex (NFAC).

1/3 scale model of the space shuttle preparing for tests in the 40-foot-by-80-foot test section. Image credit: NASA Ames

Although the new fiber optic sensors on the Ikhana are not visible, the sealant used to cover them can be…

View of the Earth as seen by the Apollo 17 crew -- astronaut Eugene A. Cernan, commander; astronaut Ronald E.…

This frame from the microscopic imager on the Mars Exploration Rover Opportunity shows spherules up to about 5 millimeters (one-fifth…