Cosmic dust may get in way of new evidence of “Big Bang”

In March, BICEP2, a collaboration of physicists, announced that it had found evidence of primordial gravitational waves, ripples in space and time that are considered a “smoking gun” for a period of inflation in the early universe. Quoted: Daniel Chung, associate professor of physics (not in Experts Guide) and Peter Timbie, professor of physics (in Experts Guide).