E-Mail IMAGE: The night sky dances with auroras over Dark Sector Laboratory at the Amundsen-Scott South Pole Station at the geographic South Pole. On the very far right, inside the silver ground... view more Credit: Robert Schwarz Faced with the tragic loss of the Arecibo observatory in Puerto Rico and the often prohibitive cost of satellite missions, astronomers are searching for savvy alternatives to continue answering fundamental questions in physics. At a press conference during the 2021 APS April Meeting, they will reveal new tactics across both hemispheres for illuminating gravitational waves and dark matter. Shining the oldest light in the universe on dark matter