ScienceMatters@Berkeley for April

I hope you enjoy my latest issue of ScienceMatters@Berkeley, including:

* Berkeley's Star Planet Hunter: Geoffrey Marcy's search for other Earths

* Tiny Test Tubes and Nanoscale Membranes: Building blocks for longer-lasting batteries and supersensitive poison detectors

* Yosemite Then and Now: Tracing the path of a century-old wildlife survey

Link