![Photo - From left: Eduardo Rozo, Risa Wechsler and El...](/sites/default/files/styles/card/public/images/2013-09-03-DES_START-FULL.jpg?h=6f3285a6&itok=qTtDWf_n)
![Photo - The Fermi Gamma-ray Space Telescope launches June 11, 2008](/sites/default/files/styles/card/public/images/Fermi-launch-full.jpg?h=0a572f9c&itok=tsL089cN)
![Illustration - Big letter "B"s change color to represent transforming B mesons](/sites/default/files/styles/card/public/images/121119-BaBar-trv-med.jpg?h=a6742f8b&itok=cc3Z1vdY)
What happened in the first moments after the Big Bang 14 billion years ago? SLAC scientists are joining others to search the oldest observable light, the cosmic microwave background (CMB) for clues.
Related links:
Physics of the Universe
Astrophysics and cosmology