NASA Excused Leave Extended Through March 2021 Post author By Mark Post date August 31, 2020 NASA Excused Leave Extended Through March 2021. By Keith Cowing on August 31, 2020 12:55 PM . 0. View. Comments. read more ← NASA Green Lights Assembly for Lucy Mission That’ll Fly By Asteroids Near Jupiter → NOAA/NASA’s Suomi NPP satellite shows two views of California’s smoky skies