Did NASA's Hubble Space Telescope confirm the first moon orbiting a planet outside our solar system? Watch & find out! | NASA - National Aeronautics and Space Administration

How does the James Webb Space Telescope get ready for space while it’s still on the ground? Practice makes perfect. Different components of the telescope were first tested on their own, but now a fully-assembled Webb is putting all of its "training" for space together. This Tumblr will take you through all the testing that Webb has undergone, all to ensure that it will survive everything from the sound and vibration of launch, to operating correctly at cryogenic temperatures in space. https://na