To help me figure out what nutrient might be missing from the AML60 medium I'm trying to grow GFAJ-1 in, I'm reading about its Halomonas relatives.
Here's a tree showing the relationship between GFAJ-1 and its closest known relatives (source).
And here's a link to a paper describing VERY THOROUGH phenotypic characterization of all the formally described species of Halomonas: Mata et al., 2002. A detailed phenotypic characterization of the type strains of Halomonas species. System. Appl. Microbiol. 25:360-375. I was initially assuming that GFAJ-1 would be quite picky about growth conditions, but if it's a typical Halomonas species it's probably quite robust, as they all tolerate wide ranges of salt concentration, pH and temperature.
Peter Thiel's interesting comparison of biotech with software
12 hours ago in The Curious Wavefunction