https://www.khanacademy.org/science/grade-8-science-snc-aligned/xa9b0f40dbc1bb08e:our-universe/xa9b0f40dbc1bb08e:space-exploration/v/spitzer_telescope 2020-06-23T07:22:42Z Spitzer telescope 400 years of Astronomy using Telescopes. To commemorate this International Year of Astronomy, three of NASA's flagship observatories have put a new spin on how we see the Pinwheel Galaxy! NASA video https://cdn.kastatic.org/googleusercontent/yUmTdQWLuX2OHD1LxiQsTIkmXkdn8Me9DNCGCKqGGYJiXmJb6B_t-72edG2MegYkm0zbTAz1vYbo3-1SpHWug08 Spitzer telescope 400 years of Astronomy using Telescopes. To commemorate this International Year of Astronomy, three of NASA's flagship observatories have put a new spin on how we see the Pinwheel Galaxy! https://cdn.kastatic.org/ka-youtube-converted/368K0iQv8nE.mp4/368K0iQv8nE.mp4 383 Space exploration https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/scale-earth-galaxy-tutorial/v/hubble-image-of-galaxies 2021-03-31T16:14:53Z Hubble image of galaxies Hubble Image of Galaxies Sal Khan video https://cdn.kastatic.org/googleusercontent/ymBZZvmDiWAdeb03ZtQAP0cyxAd3oSVwjI8GpxUdNyKjvOkcctVgP8Tw_ZUFA10TGx9r2dp1pyYLQ3dWPxur5ZnM Hubble image of galaxies Hubble Image of Galaxies https://cdn.kastatic.org/ka-youtube-converted/Wl4re38deh0.mp4/Wl4re38deh0.mp4 252 Space exploration