Images of our own fragile blue marble of a planet from space helped the environmental movement gain popular support around the time of the first Earth Day back in 1970.
Images of our own fragile blue marble of a planet from space helped the environmental movement gain popular support around the time of the first Earth Day back in 1970. Handout Photo courtesy NASA Goddard/TNS
Images of our own fragile blue marble of a planet from space helped the environmental movement gain popular support around the time of the first Earth Day back in 1970. Handout Photo courtesy NASA Goddard/TNS