Thursday, September 27, 2012

Ancient Mars Streambed Found by Curiosity Rover

Sept. 27, 2012: NASA's Curiosity rover mission has found evidence a stream once ran vigorously across the area on Mars where the rover is driving. There is earlier evidence for the presence of water on Mars, but this evidence -- images of rocks containing ancient streambed gravels -- is the first of its kind.

"From the size of gravels it carried, we can interpret the water was moving about 3 feet per second, with a depth somewhere between ankle and hip deep," said Curiosity science co-investigator William Dietrich of the University of California, Berkeley. "Plenty of papers have been written about channels on Mars with many different hypotheses about the flows in them. This is the first time we're actually seeing water-transported gravel on Mars. This is a transition from speculation about the size of streambed material to direct observation of it."
Martian Streambed (splash)
NASA's Curiosity rover found evidence for an ancient, flowing stream on Mars at a few sites, including the rock outcrop pictured here, which the science team has named "Hottah" after Hottah Lake in Canada’s Northwest Territories. Image credit: NASA/JPL-Caltech/MSSS

More - Link >>> http://science.nasa.gov/science-news/science-at-nasa/2012/27sep_streambed/

Source: NASA Science News.

gaw

Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://friendsofthezeiss.org >
Electronic Mail - < gawalsh@planetarium.cc >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
  < http://buhlplanetarium.tripod.com/#news >
Twitter: < http://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/SpaceWatchtower/238017839577841?sk=wall >
Blog: < http://spacewatchtower.blogspot.com/ >
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
  < http://www.planetarium.cc >
* Adler Planetarium, Chicago:
  < http://adlerplanetarium.tripod.com >
* Astronomer, Educator, Optician John A. Brashear:
  < http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
  < http://www.andrewcarnegie.cc >
* Civil War Museum of Andrew Carnegie Free Library:
  < http://garespypost.tripod.com >
* Duquesne Incline cable-car railway, Pittsburgh:
  < http://inclinedplane.tripod.com >
* Public Transit:
  < http://andrewcarnegie2.tripod.com/transit >

3 comments:

  1. Legends of Bangladesh A bunch of pure souls who achieved the glory for a country, Bangladesh, will remember forever as the legends of the nation

    ReplyDelete
  2. In 2019, Adidas and Under Armour took most of the places in top 10. The Best Basketball Shoes doesn’t only depend on the shoe but also on the player. Be tricky enough in choosing your best fit.

    ReplyDelete
  3. Clothes Steamer Steamer for Clothes Garment Steamer U.S.A Turbo-Steam Shop for high quality Best clothes steamer, Steamer for Clothes, garment steamer, Fabric Steamer All kinds of Steam Cleaner on Turbo Steam at best prices

    ReplyDelete