NASA honors Earth Day 2020 Today’s Video of the Day from NASA celebrates the 50th anniversary of Earth Day with a look back at some of the most significant Earth-observing space missions, including Apollo 8.
Earth-observing satellites have changed the way we view our planet’s climate, atmosphere, land, and sea. The first Earth Day took place on April 22, 1970. Firefighters battle a fire on Ohio’s Cuyahoga River in 1952. The polluted river caught fire on several occasions between 1936 and 1969, when debris and oil had concentrated on the water’s surface and ignited. Earth Day is an annual event created to celebrate the planet’s environment and raise public awareness about pollution. The day, marked on April 22, is observed worldwide with rallies, conferences, outdoor activities and service projects. Started as a grassroots movement
Video Credit: NASA