The South Pole Telescope (SPT) is a submillimeter observatory in Antarctica that performs measurements with the cosmic microwave background (CMB) as well as the dark Strength driving the acceleration in the expansion in the universe. The observatory is usually part of the Event Horizon Telescope (EHT), a world-spanning multi-telescope challenge https://ignacyu554vka2.ageeksblog.com/32240781/an-unbiased-view-of-cost-to-check-bag-on-delta