"NASA will host a media teleconference at 10 a.m. PDT (1 p.m. EDT) on Friday, Nov. 2, to provide an update on Curiosity's studies of the Martian atmosphere."
"NASA has announced that Grotzinger's team will discuss atmospheric measurements at a briefing on 2 November. If the rover has detected methane at sufficiently high concentration, or exhibiting temporal variations of the kind that suggests microbial activity, then it will surely motivate a desire to identify and map the sources."
Keith's note: Up until now, NASA has been rather quiet about the characterization of methane distribution by Curiosity ...
Keith's update: Press conference statement: "How much methane did we see? So far we have no definitive detection of methane. We have no detection of methane but we will keep looking in the month ahead."
"Methane is clearly not an abundant gas at the Gale Crater site, if it is there at all. At this point in the mission we're just excited to be searching for it," said SAM TLS lead Chris Webster of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif. "While we determine upper limits on low values, atmospheric variability in the Martian atmosphere could yet hold surprises for us."
Marc's note: I've added the complete recording of today's telecon with reporters questions to the above press release.