DOWN TO EARTH; Hard Facts From the Lunar Surface; Rock Samples Collected by Apollo Astronauts Reveal a Violent History of Bombardment and VolcanismCurt Suplee
One of the most surprising facts about the Earth is how we easily forget that what an amazing and interesting planet we live on. As Carl Saganpointed out,“It’s home, it’s us”.It is the only known planet to support an atmosphere with free oxygen, liquid water on the surface, and,...
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The Orion Nebula through history Additional Resources The Orion Nebula, also known as Messier 42 (or M42 for short), is the nearest star-forming region to Earth, located approximately 1,350 light-years away and is about 2 million years old according to NASA Jet Propulsion Laboratory. The ...
Earth is the fact that it's more than 4.5 billion years old. Then about 3.8 billion years ago, single cell organisms were born. About 230 million years ago, dinosaurs roamed the earth until they died and were replaced by early humans about 200,000 years ago. That's a lot of history....
If Earth’s history were represented in 24 hours, the dinosaurs would have become extinct at 11:41 pm and human history would have begun at 11:54:43 pm.[6] Every day, between 10 and 20 volcanoes are erupting somewhere on Earth. However, the chances of them all erupting at once is al...
1. The Earth is over 4 billion years old! About 4.543 billion years, to be precise! In fact it's so old that humanity is barely a blip in it's history! Really puts your maths homework into perspective, doesn't it? 2. The Earth is not (technically) a sphere!
Earth, third planet from the Sun and the fifth largest planet in the solar system in terms of size and mass. Its single most outstanding feature is that its near-surface environments are the only places in the universe known to harbor life. Learn more ab
Geologic history of Earth, evolution of the continents, oceans, atmosphere, and biosphere; the layers of rock at Earth’s surface contain evidence of the evolutionary processes undergone by these components of the terrestrial environment during the times
Two decades before it notched that milestone, however, Voyager 1 took one of the most iconic photos in spaceflight history. On Feb. 14, 1990, the probe turned back toward Earth and snapped an image of its home planet from 3.7 billion miles (6 billion km) away. The photo shows Earth as...