Earth

April 17, 2014--Earth-size planet where water could exist discovered (Wall Street Journal)

For the first time, astronomers have discovered a world nearly the size of Earth orbiting a far star where water might exist as a life-giving liquid, scientists announced Thursday. Using the Kepler space telescope, Elisa Quinta


March 13, 2013--Extreme water in Earth's interior (Science Daily)

Earth is the only known planet that holds water in massive quantities and in all three of the main phase states. But the earthly, omnipresent compound water has very unusual properties that become particularly evident when subjected to high pressure and high temperatures.


January 10, 2011--Earth is twice as dusty as in 19th century, research shows (Science Daily)

The amount of dust in the Earth's atmosphere has doubled over the last century, according to a new study; and the dramatic increase is influencing climate and ecology around the world.


November 9, 2010--Our wet planet: How did it come to be so blue? (Washington Post)

Imagine you own a gigantic swimming pool that's a thousand miles long and a thousand miles wide. Now imagine you decided to pour all of the world's oceans, lakes and rivers into your pool. It had better be about 333 miles deep (all the way across - no shallow end) to accommodate all that water. In other words, there's a reason the Earth is called the blue planet: It's covered in a lot of H2O.


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