Princeton Scientists Make New Observations with the Atacama Cosmology Telescope to Determine the Age of the Universe

Thursday, Jul 16, 2020
by Department of Astrophysical Sciences

A news item featured on Princeton University’s web page highlights the work of an international team of scientists, including many from the Department of Astrophysical Sciences, involved in calculating a new estimate of the universe’s age. The team has done this by taking high resolution measurements using the Atacama Cosmology Telescope (ACT) to study cosmic microwave background (CMB) fluctuations and the polarization of light. The new study data brings the age estimate into agreement with data released in 2013 from the Planck satellite space mission.  The current best estimate is that our Cosmos came into being approximately 13.77 billion years ago.

The team of scientists from Princeton includes: (Astrophysical Sciences) Jo Dunkley, David Spergel, Brandon HensleyZack Li, Andrina Nicola, Heather Prince and Jake Helton and (Princeton Physics) Suzanne Staggs, Lyman Page, Adriaan Duivenvoorden, and Emilie Storer.

The full article can be read here.