...Best of all, NASA's SoundCloud files are in the public domain, like the majority of NASA's content, meaning you can download and re-use them in your own otherworldly music compositions or sci-fi films. And more NASA sounds are on the way — as Jason Townsend, NASA's deputy social media manager, told me in a quick phone chat: "we're constantly looking for new things to be added to share the sounds of space." He pointed to the new test-firing sounds of the Space Launch System, NASA's next and biggest rocket that is now under construction, as one of his top sounds so far...

Read more: http://www.theverge.com/tldr/2014/10/21/7030533/nasa-soundcloud-account-space-sounds