American Physical Society meeting

Gas sheds light on dark matter, plus cosmic ray clusters and blue-light imaging in the news


American Physical Society April Meeting, Anaheim, Calif., April 30–May 3

Gas map
A 3-D map of gas in the far reaches of the universe could shed new light on dark matter. Using a 2.5-meter telescope with a wide field of view, Anže Slosar of Brookhaven National Laboratory in New York collected light from 14,000 bright, distant objects called quasars.