How the ice ages ended (Nature)

by Catherine Zandonella, Office of the Dean for Research A study of sediment cores collected from the deep ocean supports a new explanation for how glacier melting at the end of the ice ages led to the release of carbon dioxide from the ocean. The study published in Nature suggests that melting glaciers in the … Continue reading How the ice ages ended (Nature)

Shape from sound — new methods to probe the universe (Physical Review Letters)

By Morgan Kelly, Office of Communications As the universe expands, it is continually subjected to energy shifts, or "quantum fluctuations," that send out little pulses of "sound" into the fabric of spacetime. In fact, the universe is thought to have sprung from just such an energy shift. A recent paper in the journal Physical Review … Continue reading Shape from sound — new methods to probe the universe (Physical Review Letters)