Friday, November 25, 2011

NASA Orbiter Catches Mars Sand Dunes in Motion

Title: NASA Orbiter Catches Mars Sand Dunes in Motion
Author: Science Daily Team
Source: Web- (MLA Citation)NASA/Jet Propulsion Laboratory. "NASA orbiter catches Mars sand dunes in motion." ScienceDaily, 21 Nov. 2011. Web. 25 Nov. 2011.
Date Article Written: Nov.21, 2011

This article talks about sand dunes on Mars and the difficulties of a human settlement on Mars. Several days ago NASA's reconnaissance team has detected high speed winds on Mars's surface up to 80 MPH however they can barely move what 10 MPH of wind on Earth can move. This is caused by Mars's thin air. Scientists used to know that there were strong winds on Mars however they didn't recognize the wind could reach speeds of 80 MPH or above. The observations tell scientists that the surface of Mars is more dynamic then thought. "Sand moves by hopping from place to place," said Matthew Golombek, a co-author of the new paper and a member of the Mars Exploration Rover and Mars Reconnaissance Orbiter teams at NASA's Jet Propulsion Laboratory in Pasadena, Calif. "Before the rovers landed on Mars, we had no clear evidence of sand moving." t
This observation means that Mars has a low gravity and the air on Mars must be very thin in order to slow the wind force down that much.

This news is good for the society because we now know more about Mars and it's features. Astronauts can find this information beneficial because they know that they will need strong suits to resist that much sand blowing. I chose this article because I was interested about NASA's recent operations about Mars. I found this article while browsing Science Daily in my free time because I enjoy learning more about science. This article came from Science Daily and I trust this site because it always cites it's resources and who interviewed who and I have never received any false information from them. I learned that there are dunes on Mars and are stronger than what we expected them to be. I felt good while reading this because it is good to know we are making progress to reach new planets.

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