Smithsonian air and space museum

On the day of the launch, before light, it was still dark when the three of us went up to the gantry. Now you have to remember that there's no one else around except a couple of nervous...
  <> Dean Pesnell: Solar irradiance is the energy hitting the earth from the sun. We have different kinds of solar irradiance. We have heat solar irradiance, which is the infrared...
      George Diller/SDO Launch Commentator: This is Atlas Launch Control at T minus two   hours, 26 minutes, 28 seconds and counting.   We are live from the Atlas Spaceflight Operations Center at...
[ Music ] ^M00:00:10 [ Background music ] >> Announcer: American philosopher George Santayana once said "those who cannot remember the past are condemned to repeat it."...
The main project that I work on is the Mars Exploration Program project. It's two rovers, Spirit and Opportunity, that are on the surface of Mars. They landed in January 2004 for a 90 day...
      George Diller/SDO Launch Commentator: Standing by, the Centaur is ready to deploy SDO.   Rob Gagnon/Launch Vehicle Telemetry Manager: And we have indication of spacecraft separation.   George...
DESCRIPTION: The name "Perkins" carved in stone. Below a Gothic tower, a boy navigates with a cane. A title: HASTY: Well, graphics provide so much information for a sighted reader,...
BETH: Welcome to the Smithsonian's National Air and Space Museum. I'm Beth Wilson from the Museum's Education Department. We've prepared this short video to help you...
[music] DEVORAH: Welcome to the Smithsonian National Air and Space Museum's Steven F. Udvar-Hazy Center. I'm Devorah Jackson, Aerospace Educator in Residence. DICK: And I'm...