PHILADELPHIA (CBS) — Monday marks 54 years since the first Earth Day celebrations on April 22, 1970, and while many cities observed the event, Philadelphia took it a step further by hosting the ...

It's been more than 50 years since the first Earth Day in the United States. On April 22, 1970, people gathered at events across the country to raise awareness about the environmental issues impacting ...

In the 1970s, NASA partnered with the U.S. Postal Service on an overlooked project that helped shape modern EV development.

Some of those early space probes succeeded in their missions, capturing the first measurements and images from the Venusian surface. Kosmos 482 was not one of them. Launched in 1972, Kosmos 482 was ...