Topic: Ice

NASA says Mercury to give two week sunset show during February

February 9, 2013 |

Written by Dr. Tony Phillips
Science at NASA

Washington, D.C. – NASA has recently discovered a very strange planet.  Its days are twice as long as its years.  It has a tail like a comet. It is hot enough to melt lead, yet capped by deposits of ice. And to top it all off … it appears to be pink.

The planet is Mercury.

Of course, astronomers have known about Mercury for thousands of years, but since NASA’s MESSENGER probe went into orbit around Mercury in 2011, researchers feel like they’ve been discovering the innermost planet all over again.

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Tennessee Departemnt of Health says prepare now for Serious Health Challenges posed by Winter Weather

December 27, 2012 |

Nashville, TN – Snow, ice and sub-freezing temperatures of winter weather can come with little or no warning, creating minor problems for some and major tragedies for others.

The Department of Health is working with the Tennessee Emergency Management Agency and the Tennessee Department of Safety and Homeland Security to remind residents about the importance of planning and preparation to avoid weather-related problems in homes, outdoors or on the road this winter. «Read the rest of this article»

NASA’s MESSENGER spacecraft data confirms Ice at Mercury’s poles, some covered in Dark Material

November 30, 2012 |

Written by Dr. Tony Phillips
Science at NASA

Washington, D.C. – Observations by NASA’s MESSENGER spacecraft provide compelling support for the long-held hypothesis that Mercury harbors abundant water ice and other frozen materials in permanently shadowed polar craters.

“The new data indicate the water ice in Mercury’s polar regions, if spread over an area the size of Washington, D.C., would be more than 2 miles thick,” said David Lawrence, a MESSENGER participating scientist at the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, MD, and lead author of one of three papers describing the findings in the online edition of Science Express.

Mercury’s north pole. Red denotes areas that are in shadow in all images acquired by MESSENGER to date. (The mapping of shadows is still incomplete near the pole.) Yellow shows the locations of bright polar deposits imaged by Earth-based radar. Updated from N. L. Chabot et al., Journal of Geophysical Research, 117. (Image Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington/National Astronomy and Ionosphere Center, Arecibo Observatory)

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NASA’s Lunar Reconnaissance Orbiter’s radar shows the Moon’s Shackleton crater walls may hold patchy Ice

September 4, 2012 |

Small patches of ice could make up at most five to ten percent of material in walls of Shackleton crater.

Greenbelt, MD – Scientists using the Mini-RF radar on NASA’s Lunar Reconnaissance Orbiter (LRO) have estimated the maximum amount of ice likely to be found inside a permanently shadowed lunar crater located near the moon’s South Pole.

As much as five to ten percent of material, by weight, could be patchy ice, according to the team of researchers led by Bradley Thomson at Boston University’s Center for Remote Sensing, in Massachusetts.

NASA’s Lunar Reconnaissance Orbiter has been studying the moon since June 2009. (Credit: NASA)

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NASA’s Cassini Spacecraft finds Evidence of Subsurface Ocean of Water on Saturn’s Moon Titan

June 30, 2012 |

Written by Jia-Rui Cook
NASA’s Jet Propulsion Laboratory

Pasadena, CA – Data from NASA’s Cassini spacecraft have revealed Saturn’s moon Titan likely harbors a layer of liquid water under its ice shell.

Researchers saw a large amount of squeezing and stretching as the moon orbited Saturn. They deduced that if Titan were composed entirely of stiff rock, the gravitational attraction of Saturn would cause bulges, or solid “tides,” on the moon only 3 feet (1 meter) in height. Spacecraft data show Saturn creates solid tides approximately 30 feet (10 meters) in height, which suggests Titan is not made entirely of solid rocky material. The finding appears in today’s edition of the journal Science.

This artist’s concept shows a possible scenario for the internal structure of Titan, as suggested by data from NASA’s Cassini spacecraft. (Image credit: A. Tavani)

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NASA’s Lunar Reconnaissance Orbiter spacecraft data suggests the Moon’s Shackleton Crater has Ice along it’s floor

June 22, 2012 |

Written by Bill Steigerwald
NASA’s Goddard Space Flight Center

Greenbelt, MD – NASA’s Lunar Reconnaissance Orbiter (LRO) spacecraft has returned data that indicate ice may make up as much as 22 percent of the surface material in a crater located on the moon’s south pole.

The team of NASA and university scientists using laser light from LRO’s laser altimeter examined the floor of Shackleton crater. They found the crater’s floor is brighter than those of other nearby craters, which is consistent with the presence of small amounts of ice. This information will help researchers understand crater formation and study other uncharted areas of the moon. The findings are published in Thursday’s edition of the journal Nature.

Elevation (left) and shaded relief (right) image of Shackleton, a 21-km-diameter (12.5-mile-diameter) permanently shadowed crater adjacent to the lunar south pole. The structure of the crater’s interior was revealed by a digital elevation model constructed from over 5 million elevation measurements from the Lunar Orbiter Laser Altimeter. (Credit: NASA/Zuber, M.T. et al., Nature, 2012)

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Fort Campbell’s 887th Engineer Support Company clears roads in Afghanistan

February 19, 2012 |

The little things that add up
Written by Sgt. 1st Class Peter Mayes
101st Sustainment Brigade, 101st Airborne Division (AA) Public Affairs

Forward Operating Base Sharana, Afghanistan – The mission for route clearance team is quite simple: find a barrage of small-arms, mortars and improvised explosive devices on the roads of Afghanistan and get them off.

For the soldiers of the 887th Engineer Support Company, 326th Engineer Battalion, 101st Sustainment Brigade, everything over there is always easier said than done. The company is primarily a Horizontal Construction Company comprised of heavy equipment operators who were remissioned as route clearance experts eight months prior to their deployment.

Soldiers with the 887th Engineer Support Company, 326th Engineer Battalion, 101st Sustainment Brigade, conduct route clearing in Regional Command East, Afghanistan. (Courtesy Photo)

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Tennessee Department of Transportation Crews Stocked and Ready for Winter Weather

December 9, 2011 |

Nashville, TN – Winter weather has already arrived in some parts of the state and the Tennessee Department of Transportation (TDOT) is stocked and ready to clear roadways of ice and snow this season.

After two years of harsh winters, the Department has increased its snow and ice budget and added additional salt vendors to replenish salt supplies as the winter season progresses. «Read the rest of this article»

Prepare Now for Winter Weather

December 2, 2011 |

Tennesseans Urged to Make Plans, Stock Supplies for Ice and Snow Conditions

Nashville, TN – Winter weather in Tennessee can change quickly and leave residents dealing with the dangers posed by snow, ice and sub-freezing temperatures.

As part of our ongoing efforts to encourage emergency preparedness, the Tennessee Department of Health, Department of Safety and Homeland Security and the Tennessee Emergency Management Agency are urging Tennesseans to prepare now to stay safe and healthy during wintry weather. «Read the rest of this article»

ShopSmart’s Simple Fall Fix-Ups

September 20, 2011 |

An Easy Checklist to Save Big Dollars on Major Home Repairs

Yonkers, NY – Fall is the best time to get your house in order because come winter, small problems can turn into big-dollar nightmares. The October 2011 issue of ShopSmart magazine, from the publisher of Consumer Reports, highlights key household maintenance tasks for the fall that can save readers more than $20,000 in repairs.
 
“People need to take home repairs seriously, especially with winter just a few months away,” said Lisa Lee Freeman, editor-in-chief of ShopSmart. “Now is the time to check and service any small problems before snow, ice, and freezing temperatures accentuate them.” «Read the rest of this article»

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