ScienceThis Species Of Bacteria May Help Humans Breathe On Planet Mars A species of low-light adapted cyanobacteria can be sent to Mars to produce oxygen for colonists. These organisms can thrive in harsh environments and could make the Red Planet breathable to humans.by Allan Adamson
ScienceNew Evidence Suggests Oxygen-Producing Life Forms Appeared Much Earlier Than Previous Estimatesby Dianne Depra
Healthy Living/WellnessEPA Concerned About Levels Of Harmful Algae In Drinking Waterby Rex Macadangdang
ScienceReturn of the green goo: Lake Erie's toxic algae will be back this summer, say scientistsby Rebecca Kaplan