In 1998 two related but independent groups sent balloon‐borne microwave telescopes aloft to study fluctuations in the cosmic microwave background (CMB) at fine angular resolution. In August of that year, the Maxima telescope spent one night at 40 km above Texas. And at the end of the year, its “sister” telescope, called Boomerang, took advantage of the steady circumpolar winds of the austral summer to complete a 10‐day stratospheric circumnavigation of Antarctica.
Skip Nav Destination
July 01 2000
Balloon Measurements of the Cosmic Microwave Background Strongly Favor a Flat Cosmos
The power spectrum of the microwave background's tiny point‐to‐point temperature fluctuations is a superb probe of cosmic curvature.
Physics Today 53 (7), 17–19 (2000);
Bertram Schwarzschild; Balloon Measurements of the Cosmic Microwave Background Strongly Favor a Flat Cosmos. Physics Today 1 July 2000; 53 (7): 17–19. https://doi.org/10.1063/1.1292468
Download citation file: