Mars

6:43am

Mon October 15, 2012
Krulwich Wonders...

Be Nice To The Moon. Stop Writing On It

Originally published on Mon October 15, 2012 10:09 am

Kathy Lynch via Panoramio

Dot

Dash

Dot

Dash

This is the moon as Morse code.

Beautiful, yes, but not right. The moon isn't a dot. It's too elegant, too pale, too ghostly to be a bit of "information." It's got moods, changes, and on certain nights it's got a man on it, with eyes and a mouth, and yet some people treat the moon as if it's something you can write on.

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6:34am

Sat October 13, 2012
Space

For Sale: A Chunk Of Mars

Originally published on Tue October 23, 2012 12:31 pm

A fragment of the meteor that crashed into Tissint, Morocco.
Mark Mauthner Heritage Auctions

Few things are as rare as a piece of rock that falls from outer space and crashes onto Earth.

Among the most prized of these meteorites are from Mars. Friday, scientists describe the latest one discovered: It's called Tissint, and this weekend you can buy a piece of it.

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9:20am

Wed October 3, 2012
Krulwich Wonders...

Are Those Spidery Black Things On Mars Dangerous? (Maybe)

Originally published on Thu October 4, 2012 2:43 pm

Michael Benson NASA/JPL/University of Arizona/Kinetikon Pictures

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. As you scroll down, there's a ridge crossing through the image, then a plain, then dunes, but keep looking. You will notice, when you get to the dunes, there are little black flecks dotting the ridges, mostly on the sunny side, like sunbathing spiders sitting in rows. Can you see them?

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1:11pm

Thu September 27, 2012
The Two-Way

Streams Of Water Once Flowed On Mars; NASA Says Photos Prove It

Originally published on Fri March 21, 2014 2:20 pm

NASA says it has found proof that water shaped the rocks on the left, in a photograph taken by the Mars rover Curiosity (left). For comparison, the agency released an image of rocks from the Earth (right).
NASA

NASA's Curiosity rover has found definitive proof that water once ran across the surface of Mars, the agency announced today. NASA scientists say new photos from the rover show rocks that were smoothed and rounded by water. The rocks are in a large canyon and nearby channels that were cut by flowing water, making up an alluvial fan.

"You had water transporting these gravels to the downslope of the fan," NASA researchers say. The gravel then formed into a conglomerate rock, which was in turn likely covered before being exposed again.

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12:17pm

Mon September 10, 2012
The Two-Way

Earthly Clay Deposits Said To Debunk Ancient Oceans Of Mars

Originally published on Mon September 10, 2012 12:45 pm

One way to study distant Mars is to look for analogues here on Earth.

After all, the two worlds are similar in many ways — they both are what planetary astronomers called "rocky" (as opposed to gaseous Jupiter or Saturn), and they both have water.

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