This LRO image shows the area surrounding Apollo 15's landing site, annotated with the traverse plots of the mission's first…

APOD Science APOD APOD: 2014 June 20 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss …

Observations of infrared light coming from asteroids provide a better estimate of their true sizes than visible-light measurements. This diagram…

This image of asteroid 2011 MD was taken by NASA's Spitzer Space Telescope in Feb. 2014, over a period of…

This storm cell photo was taken from NASA's high-altitude ER-2 aircraft on May 23, 2014, during a study aimed at…

This image of comet 67P/Churyumov-Gerasimenko was taken by the Onboard Scientific Imaging System (OSIRIS) on the European Space Agency's Rosetta…

The aerodynamics team at NASA’s Langley Research Center in Virginia tested a model of the 70-metric-ton Space Launch System in…

Asteroids can differ in the degree of porosity, or the amount of empty space that makes up their structures. At…

APOD Science APOD APOD: 2014 June 19 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss …

The instrument panel illuminates the cockpit of NASA's high-altitude ER-2 during a night mission over the eastern U.S. during the…