Take a look at the new Constellation video that aired on NASA TV during the recent STS-125 shuttle mission to the Hubble Space Telescope. In it, astronaut Pam Melroy guides you through Constellation and our hopes and goals for exploration. Click on the image below, and you will be taken to the interactive feature where you can learn about it all. To see the full length video, click on "Play Video" in the middle of the screen once you access the Web feature, and let us know what you think.