Science of the Week, 5/31/13

Here are some of the most interesting articles from ScienceBlog this week:

Paper could be used for cheap biomedical, diagnostic devices

Scientists develop high-effiiciency zinc-air batteries

CO2 sequestration technique produces "supergreen" hydrogen fuel

Water-rock reaction may provide enough hydrogen "food" to sustain life in ocean's crust or on Mars

The formula for turning cement into metal

Bacterium from Canadian High Arctic offers clues to life on Mars

Have a good weekend, and see you Monday!