Earlier this week NASA unfurled two solar wings on the International Space Station.
As they opened separately like accordion window blinds, the solar wings looked like cosmic blankets of gold bars in the reflection of an orbital sunrise.
"Big day for space station. Congratulations," astronaut Pam Melroy in Mission Control radioed Atlantis commander Brent Jett. "We're all extremely happy."
The astronauts had adjusted the space station's position before starting, then halted each deployment midway for about 30 minutes so the solar panels could be heated by the sun to prevent them from sticking together, a problem astronauts have encountered before.