How a balloon-borne experiment can do the job of the Hubble space telescope
An astronomical telescope designed to complement the aging Hubble Space Telescope lifted off from New Zealand's south island on April 16 2023. But as a sphere the size of a football stadium rose silently and slowly over the Tauhinukorokio mountains, calls started coming in from residents. Local police and radio stations, however, had been briefed by Nasa that the giant helium balloon would lift the two-ton SuperBIT…