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First observation of the Night sky
Galileo Galilei discovered jupiters moons, phases of venus and lunar craters -
Philadelphia committee led by Benjamin Franklin attempts to regulate waste disposal and water pollution
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Henry David Thoreau publishes Walden
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The term ecology is coined in German as Oekologie by Ernst Heinrich Philipp August Haeckel
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The term acid rain is coined by Robert Angus Smith in the book Air and Rain
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The term smog is coined by Henry Antoine Des Voeux in a London meeting to express concern over air pollution
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US Congress created the National Park Service
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First Artificial Satellite
Sputnik 1 had the first mad made signals from space and first artificial satellite -
First Human to orbit earth
Soviet Yuri gargarian orbited the earth -
Rachel Carson publishes Silent Spring
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The Apollo 8 picture of Earthrise
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First human on the moon
Neil Armstrong was the first human to step on the moon after taking the Apollo 11 -
First Earth Day – April 22. Millions of people gather in the United States for the first Earth Day. US Environmental Protection Agency established
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First Reusable spacecraft
Spaceshuttle -
Montreal Protocol on substances that deplete the ozone layer entered into force
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Space telescope
Hubble space telescope launched and has provided some of the most high quality pictures of space we all see. -
Exoplanet Discovered
First confirmed observation of an Exoplanet -
The Kyoto Protocol was negotiated in Kyoto, Japan in December. Countries commit to reduce their emissions of carbon dioxide
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First Rover on another planet
Mars rover -
International Space station
ISS Is finished and completed -
U.S. rejects the Kyoto Protocol
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First man made object in interstellar space
Voyager 1 enters interstellar space -
U.S. announces it will cease participation in the Paris Agreement on climate change mitigation
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U.S. announces it will rejoin the Paris Agreement on climate change mitigation