Well, this is a bit mysterious. NASA has a press conference scheduled for this Thursday afternoon with the subject being Astrobiology. The announced topic of the press conference is... Rumors are starting to spread rampantly on the net, everything from proof of life found as a result of recent expeditions to full blown 'First Contact' details. Further adding to the mystery is a media embargo until the conference starts. Media embargoes are not that unusual when dealing with, say, frozen concentrated orange juice futures, but NASA conferences are usually pretty straightforward without much drama. The NASA media press release can be found here. Thoughts?