22 de abril, 50 años del día de la Tierra. What Is Earth Day Live? The Largest Online Mass Mobilization in History #EarthDayAtHome with NASA.

What Is Earth Day Live? The Largest Online Mass Mobilization in History

https://www.nasa.gov/content/earth-day-2020

 #EarthDayAtHome with NASA

The Combined Power of Remote Earth Observations aboard the International Space Station

https://medialibrary.climatecentral.org/resources/earth-day-turns-50