News Physics Frozen light stays fresh longer Researchers trap beam in an ultracold cloud of atoms for 1.5 seconds Share this:FacebookTwitterPocketRedditPrintEmail By Laura Sanders December 18, 2009 at 12:06 pm This article is only available to Science News subscribers. Subscribers, enter your e-mail address to access our archives. Client key* E-mail* Log in Not a subscriber? Science News is a nonprofit. Support us by subscribing now. Subscribe