The Harvard-Smithsonian Center for Astrophysics has called for a press conference to say that it has some big news. Many in the science community are speculating that the information could involve the discovery of gravitational waves. These waves are some of the last that Einstein predected that have yet to be discovered.
You can read more about it here, as well as get a link to the press conference on Monday the 17th. I will follow up next week with the results of the announcement.