R & D Magazine (Rockaway, N.J., Feb. 6) -- Ultra-high-efficiency solar cells similar to those used in space may now be possible on your rooftop thanks to a new microscale solar concentration technology developed by an international team of researchers. "We partnered with colleagues at Illinois because they are experts at making small, very efficient multi-junction solar cells," says Noel C. Giebink, assistant professor of electrical engineering at Penn State. Also: Fast Company (Feb. 25).