Group photo from a summer BBQ at Argonne. [Image Credit: Amy Bender]
Sandhill cranes that were frequent visitors to the CPAC group. Image taken in the summer. [Image credit: J. Hollowed]
One of the sandhill cranes from the previous image. This photo was taken during the autumn; note the color change compared to summer. [Image credit: J. Hollowed]
Getting ready to observe South Pole Telescope discovered galaxy clusters at Las Campanas Observatory in Chile. Image credit: L. Bleem
Preparing for another night of observations of SPT clusters! The ESO La Silla Observatory is in the distance. Image credit: L. Bleem
The 6.5 m Magellan/Baade Telescope mirror (with staff member L. Bleem for scale). Photo Credit: M. Bayliss
A sun dog surrounds the South Pole Telescope. Image Credit: L. Bleem
Why isn't it working? Dan, Patricia, Steve, and JD hacking [Image Credit: S. Habib]
Katrin points to LSST DESC Data Challenge 2 simulations running on most of Theta [Image Credit: S. Habib]
Milky-way sized dark matter halo image (credit CPAC group)
Matt et al exploring the LSST DESC DC2 data at the HackurDC2 Chicagoland Day [Credit: K. Heitmann]
CPAC post-lunch, clockwise from bottom left, J.D., Patricia, Malin, Martina, Hillary, Lindsey, Amy L., Nick, Matt, Katrin, Tom, Amy B. (Salman represented by half-eaten apple)
JD, Lindsey, and Patricia after running a workshop at the 2019 Expanding Your Horizons event (https://eyhchicago.com/).
Walking on the Waterfall Glen Trail that surrounds Argonne.