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'Click' For More Info: 'Chocolate Soup', Fine Home Accessories and Gifts, Located In Mariposa, California
'Click' For More Info: 'Chocolate Soup', Fine Home Accessories and Gifts, Located In Mariposa, California
‘Click’ for the best sounding Chimes in the world all made in Mariposa California... “Let the Good Chimes Toll“
‘Click’ for the best sounding Chimes in the world all made in Mariposa California... “Let the Good Chimes Toll“
'Click' For More Info: Laura Lee’s Auto Sales in Mariposa… “I can find any car you want!”
'Click' For More Info: Laura Lee’s Auto Sales in Mariposa… “I can find any car you want!”
'Click' Here For All Creatures Veterinary Hospital in Mariposa, CA
'Click' Here For All Creatures Veterinary Hospital in Mariposa, CA
‘Click’ for Mariposa Auto Trim: Get Your Glass Repaired or Replaced at ‘Mariposa Auto Trim’ in Mariposa, California
‘Click’ for Mariposa Auto Trim: Get Your Glass Repaired or Replaced at ‘Mariposa Auto Trim’ in Mariposa, California
'Click' For More Info: ‘California State Mining & Mineral Museum’ Located in Mariposa, California
'Click' For More Info: ‘California State Mining & Mineral Museum’ Located in Mariposa, California
'Click' For More Info: ‘Mariposa Museum & History Center’ Located in Historic Mariposa, California
'Click' For More Info: ‘Mariposa Museum & History Center’ Located in Historic Mariposa, California
'Click' For More Info: Foster Ace Hardware...the Helpful Place for All your Home and Hardware Needs In Mariposa, California
'Click' For More Info: Foster Ace Hardware...the Helpful Place for All your Home and Hardware Needs In Mariposa, California
'Click' For More Info: Sugar Pine Café Located in Historic Mariposa, California
'Click' For More Info: Sugar Pine Café Located in Historic Mariposa, California
'Click' For More Info: Inter-County Title Company Located in Mariposa, California
'Click' For More Info: Inter-County Title Company Located in Mariposa, California
'Click' For More Info: Butterfly Creek Winery Located in Mariposa, California
'Click' For More Info: Butterfly Creek Winery Located in Mariposa, California
'Click' here to visit Happy Burger Diner in Mariposa... "We have FREE Wi-Fi, we're Eco-Friendly & have the Largest Menu in the Sierra"
'Click' here to visit Happy Burger Diner in Mariposa... "We have FREE Wi-Fi, we're Eco-Friendly & have the Largest Menu in the Sierra"
'Click' here for more info! Host a party to earn FREE Scentsy or place an order to support a local businesswoman. Thank You!
'Click' here for more info! Host a party to earn FREE Scentsy or place an order to support a local businesswoman. Thank You!


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  • Last Update:Tuesday 26 July 2016, 06:37.
Today
Mariposa County Board of Supervisors Meeting Agenda for Tuesday, July 26, 2016
And
Madera County Board of Supervisors Special Meeting Agenda For Tuesday, July 26, 2016 - Items Include Proposed Sales Tax Measure

Serpa Fire Information

Monday 8:00 P.M. Update: Click Here for Serpa Fire Information

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Mariposa County Real Estate
New for Monday, July 25
Mariposa County June 2016 Home Sales Up 27% Year Over Year as California Housing Market Gains Momentum

Updated on Tuesday at 4:30 A.M.
Daily Area News Links:
Sheriff will not be able to protect growers at harvest

Mariposa Weather for Tuesday, July 26, 2016
Sunny and hot today as the high temps top out around 100 degrees for the day while the low temp for tonight comes in at 71 degrees. Yesterday the high temp topped out at 98.7 degrees (.7 degrees warmer than Sunday) while the low came in at 69.6 degrees. Wednesday's high temps come in around 99 degrees with sunny skies. Future high temps: Thurs.: 99 degrees, Fri.: 98 degrees.
More weather information...


Valley Online News.com
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 Merced County Farm Bureau 2016 Youth Poster Contest

Man Accused Of Abusing Puppy At Sonora Park
Man who helped save a drowning woman at Millerton Lake credits his Army training
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Artist concept of aurora on Mars

Artist’s conception of MAVEN’s Imaging UltraViolet Spectrograph (IUVS) observing the “Christmas Lights Aurora" on Mars. 
MAVEN observations show that aurora on Mars is similar to Earth’s "Northern Lights" but has a different origin.
Image Credit: University of Colorado

March 2015 - NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft has observed two unexpected phenomena in the Martian atmosphere: an unexplained high-altitude dust cloud and aurora that reaches deep into the Martian atmosphere.

The presence of the dust at orbital altitudes from about 93 miles (150 kilometers) to 190 miles (300 kilometers) above the surface was not predicted. Although the source and composition of the dust are unknown, there is no hazard to MAVEN and other spacecraft orbiting Mars.

"If the dust originates from the atmosphere, this suggests we are missing some fundamental process in the Martian atmosphere," said Laila Andersson of the University of Colorado's Laboratory for Atmospherics and Space Physics (CU LASP), Boulder, Colorado.

The cloud was detected by the spacecraft’s Langmuir Probe and Waves (LPW) instrument, and has been present the whole time MAVEN has been in operation. It is unknown if the cloud is a temporary phenomenon or something long lasting. The cloud density is greatest at lower altitudes. However, even in the densest areas it is still very thin. So far, no indication of its presence has been seen in observations from any of the other MAVEN instruments.

Possible sources for the observed dust include dust wafted up from the atmosphere; dust coming from Phobos and Deimos, the two moons of Mars; dust moving in the solar wind away from the sun; or debris orbiting the sun from comets. However, no known process on Mars can explain the appearance of dust in the observed locations from any of these sources.

Map of MAVEN aurora on Mars
A map of IUVS’s auroral detections in December 2014 overlaid on Mars’ surface. The map shows that the aurora was widespread in the northern hemisphere, not tied to any geographic location. The aurora was detected in all observations during a 5-day period. Image Credit: University of Colorado

MAVEN's Imaging Ultraviolet Spectrograph (IUVS) observed what scientists have named "Christmas lights." For five days just before Dec. 25, MAVEN saw a bright ultraviolet auroral glow spanning Mars' northern hemisphere. Aurora, known on Earth as northern or southern lights, are caused by energetic particles like electrons crashing down into the atmosphere and causing the gas to glow.

"What's especially surprising about the aurora we saw is how deep in the atmosphere it occurs - much deeper than at Earth or elsewhere on Mars,” said Arnaud Stiepen, IUVS team member at the University of Colorado. “The electrons producing it must be really energetic."

The source of the energetic particles appears to be the sun. MAVEN's Solar Energetic Particle instrument detected a huge surge in energetic electrons at the onset of the aurora. Billions of years ago, Mars lost a global protective magnetic field like Earth has, so solar particles can directly strike the atmosphere. The electrons producing the aurora have about 100 times more energy than you get from a spark of house current, so they can penetrate deeply in the atmosphere.

The findings are being presented at the 46th Lunar and Planetary Science Conference in The Woodlands, Texas.

MAVEN was launched to Mars on Nov. 18, 2013, to help solve the mystery of how the Red Planet lost most of its atmosphere and much of its water. The spacecraft arrived at Mars on Sept. 21, and is four months into its one-Earth-year primary mission.

"The MAVEN science instruments all are performing nominally, and the data coming out of the mission are excellent," said Bruce Jakosky of CU LASP, Principal Investigator for the mission.

MAVEN is part of the agency's Mars Exploration Program, which includes the Opportunity and Curiosity rovers, the Mars Odyssey and Mars Reconnaissance Orbiter spacecraft currently orbiting the planet.

NASA's Mars Exploration Program seeks to characterize and understand Mars as a dynamic system, including its present and past environment, climate cycles, geology and biological potential. In parallel, NASA is developing the human spaceflight capabilities needed for its journey to Mars or a future round-trip mission to the Red Planet in the 2030’s.

MAVEN's principal investigator is based at the University of Colorado's Laboratory for Atmospheric and Space Physics, and NASA's Goddard Space Flight Center in Greenbelt, Maryland, manages the MAVEN project. Partner institutions include Lockheed Martin, the University of California at Berkeley, and NASA's Jet Propulsion Laboratory.

For images related to the findings, visit: http://www.nasa.gov/maven