NASA will be performing network maintenance on Monday, March 10, 2025, between 10:00 AM EDT and 10:30 AM EDT (14:00 to 14:30 UTC). There will be a few periods of disruption. This will result in the of the unavailability of the SGP website during these periods. If you experience problems outside this window, contact support-cddis@nasa.gov.

close window

APOL - Apache Point Observatory Photos

Apache Point Observatory


Laser ranging to the moon. Photo Credit: Dan Long (Apache Point Observatory)

Laser ranging to the moon. Photo Credit: Dan Long (Apache Point Observatory)