Accelerate progress in our three core enterprises — Explore Worlds, Find Life, and Defend Earth. You can support the entire fund, or designate a core enterprise of your choice.
Earth’s thermal atmospheric tide Earth’s thermal atmospheric tide, showing variations in temperature and wind at 100 km (around the mesopause, between the mesosphere and thermosphere). The scale is in ‘anomaly’ units, or how many degrees the temperature field is changing from the mean. From Wikipedia user Jensob