Photons of Light


Manage episode 229635848 series 1324966
By Discovered by Player FM and our community — copyright is owned by the publisher, not Player FM, and audio streamed directly from their servers.
By timing how long it takes individual photons to leave the satellite, reflect off the surface, and return to the receiver telescope on the satellite, NASA can precisely measure surface heights below.

2000 episodes available. A new episode about every day .