Latest Explorer program Stories
After successful completion of their science objectives earlier this year, two NASA spacecraft have been assigned a new mission to study how solar wind electrifies, alters and erodes the moon's surface.
After more than a decade of service, NASA officially decommissioned its Galaxy Evolution Explorer (GALEX) orbiting space telescope Friday afternoon.
NASA's Interface Region Imaging Spectrograph (IRIS) mission is gearing up for its long-anticipated launch this week.
NASA’s NuSTAR orbiting observatory is designed to investigate high-energy events throughout the universe, and the cosmos has been keeping it busy in recent months, producing one event after another.
Scheduled to launch June 26, NASA’s newest scientific satellite will provide the most detailed look ever at the sun’s lower atmosphere, called the interface region.
- A volcanic mudflow.