Mars 2020 will blaze a trail for human flight to Mars. Entry into the Martian atmosphere for spacecraft from Earth. 7 minutes of terror. Mars 2020 guidance system makes safer landings on Mars. MOXIE. Telescopes. Fermi Observatory. Hubble ST. How Spitzer has stayed alive for such a long time. But it will be shut down in January 2020. Fermi Mission reveals its most intense Gamma Ray Bursts yet.