Are you working with pathogens or volatiles? Use this flowchart to determine what safety cabinet or fume hood is necessary for any experimental situation.

Researchers also found seasonal variations in atmospheric methane on the planet that may have a geological or biological origin.  

Tests run on Martian soil samples indicate the presence of organic compounds, but the traces of carbon may or may not have come from once-living things.

A new meta-analysis of farming practices suggests that traditional methods of cultivating food plants result in heftier harvests than do organic strategies.