McGill online game expands to connect global scientific community with citizen scientists.

Dark matter, believed by physicists to outweigh all the normal matter in the universe by more than five to one, is by definition invisible. But certain features associated with dark matter might be detectable, according to some of the many competing theories describing this elusive matter.

Bioengineers from the University of California, San Diego have created a new method for analyzing RNA transcripts from samples of 50 to 100 cells. The approach could be used to develop inexpensive and rapid methods for diagnosing cancers at early stages, as well as better tools for forensics, drug discovery and developmental biology.

Letter argues that NSF's purview must extend to research in the social science and behavioral sciences