I wrote: >Probably this: > ><http://blogs.discovermagazine.com/80beats/2010/11/29/cassini-probe-detects-a-wispy-oxygen-atmosphere-on-saturns-moon-rhea/> Update: Not this. That was in the 26 Nov issue of Science. The press conference is about an embargoed story in the 3 Dec issue. -- David.