Showing posts with label water. Show all posts
Showing posts with label water. Show all posts

Thursday, July 02, 2015

The Good, The Bad, and the Algae


Source - NASA Science News for July 2, 2015

With support from NASA, the EPA has developed an app to track algae that can threaten fresh water supplies.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2015/26jun_algae/

A companion video is posted below and can also be viewed at: https://www.youtube.com/watch?v=3Wm3G8s8bxk



Creative Commons Attribution license (reuse allowed)

Friday, January 02, 2015

Satellite with Extraordinary Antenna to Study Soil Moisture


Source - NASA Science News for Dec. 31, 2014

Launching in January 2015, NASA's Soil Moisture Mapping satellite (SMAP) will track water in the soil. Data gathered using the satellite's unusual antenna with help forecast weather, floods, drought, crop yield and landslides - all from outer space.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/31dec_smap/

Friday, December 19, 2014

New Evidence for a Mars Water Reservoir


Source - NASA Science News for Dec. 19, 2014

NASA and an international team of planetary scientists have found evidence in meteorites on Earth that indicates Mars has a distinct and global reservoir of water or ice near its surface.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/19dec_marswater/

Wednesday, January 22, 2014

Water Detected on Dwarf Planet Ceres


Source - NASA Science News for Jan. 22, 2014

Scientists using the Herschel space observatory have made the first definitive detection of water vapor on the largest and roundest object in the asteroid belt, dwarf planet Ceres.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2014/22jan_ceres/

Sunday, January 20, 2013

Layers with Carbonate Content Inside McLaughlin Crater on Mars


This view of layered rocks on the floor of McLaughlin Crater shows sedimentary rocks that contain spectroscopic evidence for minerals formed through interaction with water. The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter recorded the image.

A combination of clues suggests this 1.4-mile-deep (2.2-kilometer-deep) crater once held a lake fed by groundwater. Part of the evidence is identification of clay and carbonate minerals within layers visible near the center of this image. The mineral identifications come from the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), also on the Mars Reconnaissance Orbiter.

The scene covers an area about one-third of a mile (about 550 meters) across, at 337.6 degrees east longitude, 21.9 degrees north latitude. North is up. Figure 1 indicates the location of layers bearing clay and carbonate minerals and includes a scale bar of 100 meters (328 feet).


Source: http://www.nasa.gov/mission_pages/MRO/multimedia/pia16710.html

Image credit: NASA/JPL-Caltech/Univ. of Arizona

Sunday, September 30, 2012

Video: NASA's Curiosity Rover Finds Old Streambed on Mars


Source - NASAtelevision for Sep 27, 2012:

"NASA's newest Mars rover has found evidence that a stream once ran vigorously across the area on the Red Planet where the rover is now driving. The finding is a different type of evidence for water on Mars than ever found before. Scientists are studying Curiosity's images of rocks containing ancient streambed gravels. The sizes and shapes of stones cemented into a layer of conglomerate rock are clues to the speed and distance of a long-ago stream's flow."

This video is 51 minutes long so pop some popcorn before you start watching:

Thursday, September 27, 2012

Curiosity Finds Old Streambed on Mars


Source - NASA Science News for Sept. 27, 2012

Curiosity has found evidence that a stream once ran vigorously across the area on Mars where the rover is now driving.

The complete article can be found here: http://science.nasa.gov/science-news/science-at-nasa/2012/27sep_streambed/

Here is a quote from that article:

 "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."



Sunday, May 20, 2012

Big Picture Science for 05/21/12 - To Earth and Back

Image for Big Picture Science weekly radio show
Big Picture Science - To Earth and Back

We are all Martians … or could be, if, billions of years ago, Red Plant microbes fell to Earth and eventually evolved to us. Okay, that one’s a big “if.” But microbes can survive space travel. Meet the NASA officer whose task is to keep Earth, Mars – and the entire solar system –safe from hitchhiking bacteria.

And, even if we’re not Martians (darn!), did life once thrive on the Red Planet … and does it still today?

Plus, why meteorites may be happy habitats for life.

Guests:

Permalink: http://radio.seti.org/episodes/To_Earth_and_Back

You can listen to this and other episodes at http://radio.seti.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Thursday, March 29, 2012

How to Explore Earth-like Planets Light Years Away

Source - NASA Science News for March 29, 2012

With NASA's Kepler spacecraft discovering alien worlds at a record pace, it seems to be just a matter of time before an Earth-sized planet is found in the "Goldilocks zone"--that is, in an orbit sized just right for liquid water and life. In today's story from Science@NASA, researchers discuss how they'll explore a cousin of Earth so many light years away.

The full story can be found here: http://science.nasa.gov/science-news/science-at-nasa/2012/29mar_goldilocks/

A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?v=diz4Q3ALi5k


Friday, December 09, 2011

"Slam Dunk" Sign of Past Water on Mars

Source - NASA Science News for Dec. 8, 2011

As NASA's newest Mars rover Curiosity heads for the Red Planet, veteran rover Opportunity continues to make discoveries. Opportunity's latest find, an apparent vein of the mineral gypsum, is a "slam dunk" sign of past water on Mars, say researchers.

FULL STORY at http://science.nasa.gov/science-news/science-at-nasa/2011/08dec_slamdunk/

Thursday, November 17, 2011

New Evidence for Liquid Water on Europa

Source - NASA Science News for Nov. 16, 2011:

Scientists studying data from NASA's Galileo probe have found evidence for a body of liquid water the volume of the North American Great Lakes locked inside the icy shell of Jupiter’s moon Europa. The finding could have significant implications for the search for life beyond Earth.

FULL STORY at http://science.nasa.gov/science-news/science-at-nasa/2011/16nov_europa/

Friday, August 05, 2011

Salt Water May Flow on Mars

Source - NASA Science News for August 4, 2011

A new study of images from NASA's Mars Reconnaissance Orbiter suggests that salt water may be actively flowing across the surface of the Red Planet.

FULL STORY at

http://science.nasa.gov/science-news/science-at-nasa/2011/04aug_marsflows/

Thursday, October 21, 2010

Lunar Impact Uncovered More Than Just Moon Water

Source - NASA Science News for Oct. 21, 2010

Nearly a year after announcing the discovery of water molecules on the moon, scientists say there's more than just water hiding in cold lunar craters.

FULL STORY at

http://science.nasa.gov/science-news/science-at-nasa/2010/21oct_lcross2/

Thursday, March 18, 2010

The Multiplying Mystery of Moonwater

Source - NASA Science News for March 18, 2010

Researchers who once confidently stated that the Moon was bone-dry are now thinking the unthinkable: The Moon has so much water, there's actually a "lunar hydrosphere." International spacecraft have recently discovered no fewer than three "flavors" of moonwater and no one knows when the discoveries will end.

FULL STORY at

http://science.nasa.gov/headlines/y2010/18mar_moonwater.htm?list894285

Check out our RSS feed at http://science.nasa.gov/rss.xml

Friday, December 18, 2009

A Flash of Light from Titan

Source - NASA Science News for December 18, 2009

NASA's Cassini Spacecraft has captured the first flash of sunlight reflected off a lake on Saturn's moon Titan, confirming the presence of liquid on the part of the moon dotted with many large, lake-shaped basins.

FULL STORY at

http://science.nasa.gov/headlines/y2009/18dec_titanglint.htm?list894285

Check out our RSS feed at http://science.nasa.gov/rss.xml


And here are three related articles ~ Jim

Wednesday, December 02, 2009

Sandtrapped Mars Rover Makes Big Discovery

Source - NASA Science News for December 2, 2009

While stuck in a sandtrap, Mars rover Spirit has made a discovery one researcher calls "supremely interesting."

FULL STORY at

http://science.nasa.gov/headlines/y2009/02dec_troy.htm?list894285

Check out our RSS feed at http://science.nasa.gov/rss.xml

Friday, November 13, 2009

LCROSS Finds Water on the Moon

Source - NASA Science News for November 13, 2009

The argument that the Moon is a dry, desolate place no longer holds water. At a press conference today, researchers revealed data from NASA's LCROSS mission indicating that water exists in a permanently shadowed lunar crater.

FULL STORY at

http://science.nasa.gov/headlines/y2009/13nov_lcrossresults.htm?list894285

Check out our RSS feed at http://science.nasa.gov/rss.xml

Wednesday, October 07, 2009

Microwaving Water from Moondust

Source - NASA Science News for October 7, 2009

NASA scientists have figured out how to extract water from lunar soil. Their approach is as easy as using a microwave oven.

FULL STORY at

http://science.nasa.gov/headlines/y2009/07oct_microwave.htm?list894285

Check out our RSS feed at http://science.nasa.gov/rss.xml

Thursday, September 24, 2009

Water Molecules Found on the Moon

Source - NASA Science News for September 24, 2009

Using instruments on three separate spacecraft, scientists have discovered water molecules in the polar regions of the Moon.

FULL STORY at

http://science.nasa.gov/headlines/y2009/24sep_moonwater.htm?list894285

Check out our RSS feed at http://science.nasa.gov/rss.xml