There’s supposed to be some gigantic announcement coming from the astronomy community today at noon. I think we’ve been burned by the hype a few times before (arsenic life, anyone?), but Sean Carroll thinks this might actually be a significant discovery about Gravitational Waves in the Cosmic Microwave Background. I had no idea what that meant — I’m a biologist, dammit — but Carroll gives a darn good explanation for why it matters. It has cosmological implications about the Big Bang and inflation.
Go read it yourself so that when the announcement comes down and everyone is looking baffled, you can nod sagely and explain to everyone around you what it means.