History of Science
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Samuel Pierpont Langley conducted the first successful flight of an unpiloted, engine-driven, heavier-than-air craft from a houseboat near Chopawamsic Island…
Well-wishers in Hawaii welcomed the astronauts on July 26, 1969, after they landed on the Moon, splashed down in the…
A new video series offers a look at the satellite program that changed how we look at Earth.
Fifty years ago, the Apollo astronauts carried some souvenirs from Earth to the Moon, and then brought them back.
When NASA launched the Nimbus-4 satellite 50 years ago, nobody knew the ozone layer over Antarctica was thinning.
Satellites like Terra have given scientists a detailed view of Earth that didn't exist 20 years ago.
Seven million years ago, some truly spectacular creatures roamed the woodlands of East Africa.
Since March 1989, the Earth Observer newsletter has reported timely news from NASA’s Earth Science Program.
As we celebrate our 20th anniversary, we take a look back at how the Web, the world, and EO have…
