
Isolated Rotor Test System in the 14 x 22 foot wind tunnel.

The Energy Efficient Transport (EET) Full Span model in the 14 x 22 foot wind tunnel.

The Energy Efficient Transport (EET) model tested in its semi-span configuration.

X-33 7.75% scale ground effects model.

Humvee in the 14 x 22 foot wind tunnel.

6% High Speed Civil Transport (HSCT) model

European Space Agency (ESA) astronaut and Expedition 46 Flight Engineer Tim Peake (@astro_timpeake) photographed the Alps from orbit on Dec.…

APOD Science APOD APOD: 2015 December 30 – The… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…

NASA's Earth Observatory has tracked down images resembling all 26 letters of the English alphabet using only NASA satellite imagery…

APOD Science APOD APOD: 2015 December 29 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss …