
The sun's magnetic field changes polarity approximately every 11 years.

This photograph of Neil Armstrong, Apollo 11 commander, was taken inside the Lunar Module (LM) while the LM rested on…

The heliospheric current sheet circles the sun's equator like a wavy skirt around a ballerina's waist and expands beyond the…
APOD Science APOD APOD: 2013 August 5… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD…

APOD Science APOD APOD: 2013 August 4 – Io’s… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss…

APOD Science APOD APOD: 2013 August 3 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss …

Administrator Charles Bolden toured the Horizontal Integration Facility at NASA's Wallops Flight Facility in Virginia today with members of the…

Rocket University participants prepare to launch high-altitude balloon to

The Moderate Resolution Imaging Spectroradiometer (MODIS) aboard NASA’s Terra satellite captured this true-color image of central Australia on July 22…

Portrait of Garrett Skrobot, project manager for the Educational Launch of Nanosatellites, or ELaNa, at NASA's Kennedy Space Center.