
Progress toward quieter aircraft: Allison Low Speed Noise Fan with swept/leaned stators mounted in the 9'x15' Low Speed Wind Tunnel.

Progress toward quieter aircraft: Alternative Low Noise Fan System mounted in the 9'x15' Low Speed Wind Tunnel.

Technician at work on the Lockheed Short Takeoff Vertical Landing (STOVL) model mounted in the 9x15 Low Speed Wind Tunnel.

Laser imaging of exhaust from the Supersonic Short Takeoff Vertical Landing (STOVL) hot gas ingestion model mounted in the 9'x15'…

APOD Science APOD APOD: 2015 December 10 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss …

This week in 1972, Apollo 17, the seventh and final lunar landing mission, landed in the Taurus-Littrow valley on the…

This view from NASA's Dawn spacecraft features a crater named Oxo, which is about 6 miles (9 kilometers) in diameter.

A group of scientists from NASA's Dawn mission suggests that when sunlight reaches Ceres' Occator Crater, a kind of thin…

This representation of Ceres' Occator Crater in false colors shows differences in the surface composition.

An image of Occator Crater draped over a digital terrain model provides a 3-D-like perspective view of the impact structure.