Tag Archives: kilometers

Challenger Deep

According to the National Oceanic and Atmospheric Administration (NOAA), “The deepest part of the ocean is called the Challenger Deep and is located beneath the western Pacific Ocean in the southern end of the Mariana Trench, which runs several hundred kilometers southwest of the U.S. territorial island of Guam. Challenger Deep is approximately 11,030 meters [...]

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Black Spidery things on Mars

Radiolab Blogland recently posted the piece below titled “Krulwich Wonders: Are Those Spidery Black Things on Mars Dangerous? (Maybe).” Read on! “You are 200 miles directly above the Martian surface—looking down. This image was taken by the Mars Reconnaissance Orbiter on Jan. 27, 2010. (The color was added later.) What do we see? Well, sand, mostly [...]

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Largest Earthquake Ever Recorded

The largest earthquake ever recorded took place in Valdivia, Chile on the evening of May 22, 1960.  The U.S. Geological Survey explains that it reached a magnitude of 9.5 on the Richter scale (the energy equivalent of 10+18 joules) and spanned roughly 1,000 kilometers of land (10+04) from Lebu to Puerto Aisen. The earthquake left [...]

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Sizing up the Moon

Universe Today offers a few fascinating ways to consider the size of the moon: “The volume of the Moon is 2.195 x 1010 km3 [almost 22 billion km3]. That sounds like a huge number, but it’s actually only 2% the volume of the Earth.  In other words, you could fit 50 moons inside the volume [...]

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24 (kilometers)

24 kilometers = 14.5 miles

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31 (million miles from Earth)

What does Earth look like from 31 million miles away (or 50,000 kilometers or 50,000,000 meters or 5 x 10+7 away like in Powers of Ten)? Below is part of  Astronomy Picture of the Day on 9/3/2008 (with the bonus of seeing the moon orbiting Earth)!! 2008 September 3 “On July 4th, 2005, the Deep [...]

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  • Countdown to Powers of Ten Day

    • 10/10/10 1411 days ago