High-Definition Space Telescope
![A comparison between the primary mirrors of the Hubble Space Telescope, James Webb Space Telescope, and the proposed High Definition Space Telescope (HDST)](/Images/godic/202501/17/Comparison_between_mirrors_of_HST,_JWST_and_HDST5637.jpg")
![](/Images/godic/202501/17/HST_SWEEPS_Detail_20065638.jpg")
The High-Definition Space Telescope (HDST) is a proposed space observatory that would be located at the Sun-Earth Lagrange 2 point. The HDST was proposed by the Association of Universities for Research in Astronomy (AURA) on July 6, 2015.