Sounds veerrry interesting. Quixote at Shakesville does a good job setting the stage for what may be a forthcoming announcement from NASA.

Yay! Sounds like we've learned something new! I don't care what they found -- more water, organic compounds, fossil bacteria, everybody's missing socks -- just, Yay! It's hard not to hope for something conclusive about life.

Meanwhile, People of Earth wonder (as summed up by Watercat at Shakesville): "Why are they briefing the US President, and how are they getting scientific facts into little tiny words so he can understand them?"