Clarksville, TN Online: News, Opinion, Arts & Entertainment.


Topic: Guy Webster

NASA’s Mars Curiosity rover examines minerals on Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Scientists now have a better understanding about a site with the most chemically diverse mineral veins NASA’s Curiosity rover has examined on Mars, thanks in part to a valuable new resource scientists used in analyzing data from the rover.

Curiosity examined bright and dark mineral veins in March 2015 at a site called “Garden City,” where some veins protrude as high as two finger widths above the eroding bedrock in which they formed.

This March 27, 2015, view from the Mast Camera (Mastcam) on NASA's Curiosity Mars rover shows a site with a network of prominent mineral veins below a cap rock ridge on lower Mount Sharp. (NASA/JPL-Caltech/MSSS)

This March 27, 2015, view from the Mast Camera (Mastcam) on NASA’s Curiosity Mars rover shows a site with a network of prominent mineral veins below a cap rock ridge on lower Mount Sharp. (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA Mars Reconnaissance Orbiter captures images of regions on Mars used in movie, “The Martian”

 

Written by DC Agle / Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Images from a NASA Mars orbiter’s telescopic camera reveal details of real regions on Mars where a new Hollywood movie, “The Martian,” places future astronaut adventures.

The novel of the same name used actual locations on Mars for the landing sites for its “Ares 3” and “Ares 4” missions. The landing sites for “Ares 3” is on a Martian plain named Acidalia Planitia. The base for the “Ares 4” mission was set inside a crater named Schiaparelli.

This May 2015 image from the HiRISE camera on NASA's Mars Reconnaissance Orbiter shows a location on Mars associated with the best-selling novel and Hollywood movie, "The Martian." (NASA/JPL-Caltech/Univ. of Arizona)

This May 2015 image from the HiRISE camera on NASA’s Mars Reconnaissance Orbiter shows a location on Mars associated with the best-selling novel and Hollywood movie, “The Martian.” (NASA/JPL-Caltech/Univ. of Arizona)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Curiosity rover drills hole in sandstone at Mount Sharp

 

Written by DC Agle / Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – On Tuesday, September 29th, NASA’s Curiosity Mars rover drilled its eighth hole on Mars, and its fifth since reaching Mount Sharp one year ago.

The drilling of the hole 2.6-inches (65 millimeters) deep in a rock the team labeled “Big Sky” is part of a multi-day, multi-step sequence that will result in the analysis of the Martian rock’s ingredients in the rover’s two onboard laboratories – the Chemistry and Mineralogy X-Ray diffractometer (CheMin) and the Sample Analysis at Mars (SAM) instrument suite.

This composite image looking toward the higher regions of Mount Sharp was taken on September 9, 2015, by NASA's Curiosity rover. In the foreground -- about 2 miles (3 kilometers) from the rover -- is a long ridge teeming with hematite, an iron oxide. (NASA/JPL-Caltech/MSSS)

This composite image looking toward the higher regions of Mount Sharp was taken on September 9, 2015, by NASA’s Curiosity rover. In the foreground — about 2 miles (3 kilometers) from the rover — is a long ridge teeming with hematite, an iron oxide. (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA’s Mars Reconnaissance Orbiter confirms Liquid Flowing Water on Mars

 

Written by Guy Webster / DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – New findings from NASA’s Mars Reconnaissance Orbiter (MRO) provide the strongest evidence yet that liquid water flows intermittently on present-day Mars.

Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time.

They darken and appear to flow down steep slopes during warm seasons, and then fade in cooler seasons. They appear in several locations on Mars when temperatures are above minus 10 degrees Fahrenheit (minus 23 Celsius), and disappear at colder times.

Dark, narrow streaks on Martian slopes such as these at Hale Crater are inferred to be formed by seasonal flow of water on contemporary Mars. The streaks are roughly the length of a football field. (NASA/JPL-Caltech/Univ. of Arizona)

Dark, narrow streaks on Martian slopes such as these at Hale Crater are inferred to be formed by seasonal flow of water on contemporary Mars. The streaks are roughly the length of a football field. (NASA/JPL-Caltech/Univ. of Arizona)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA to make announcement regarding Solving Major Mars Mystery

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA will detail a major science finding from the agency’s ongoing exploration of Mars during a news briefing at 8:30am PDT (11:30am EDT) on Monday, September 28th.

The event will be broadcast live on NASA Television and the agency’s website.

Mars true-color globe showing Terra Meridiani. (NASA/Greg Shirah)

Mars true-color globe showing Terra Meridiani. (NASA/Greg Shirah)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Rover Opportunity to work in Marathon Valley during the Martian Winter

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Mars Exploration Rover Opportunity is conducting a “walkabout” survey of “Marathon Valley,” where the rover’s operators plan to use the vehicle through the upcoming Martian winter, and beyond, to study the context for outcrops bearing clay minerals.

Marathon Valley slices downhill from west to east for about 300 yards or meters through the western rim of Endeavour Crater. Opportunity has been investigating rock targets in the western portion of the valley since late July, working its way eastward in a thorough reconnaissance of the area.

This Martian scene shows contrasting textures and colors of "Hinners Point," at the northern edge of "Marathon Valley," and swirling reddish zones on the valley floor to the left. (NASA/JPL-Caltech/Cornell Univ./Arizona State Univ.)

This Martian scene shows contrasting textures and colors of “Hinners Point,” at the northern edge of “Marathon Valley,” and swirling reddish zones on the valley floor to the left. (NASA/JPL-Caltech/Cornell Univ./Arizona State Univ.)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Curiosity rover finds Sand Dunes that have Petrified

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Some of the dark sandstone in an area being explored by NASA’s Curiosity Mars rover shows texture and inclined bedding structures characteristic of deposits that formed as sand dunes, then were cemented into rock.

This sandstone outcrop — part of a geological layer that Curiosity’s science team calls the Stimson unit — has a structure called crossbedding on a large scale that the team has interpreted as deposits of sand dunes formed by wind.

Large-scale crossbedding in the sandstone of this ridge on a lower slope of Mars' Mount Sharp is typical of windblown sand dunes that have petrified. (NASA/JPL-Caltech/MSSS)

Large-scale crossbedding in the sandstone of this ridge on a lower slope of Mars’ Mount Sharp is typical of windblown sand dunes that have petrified. (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA says Scientists are moving closer to answering the question, What happened to Mars’ Atmosphere

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Scientists may be closer to solving the mystery of how Mars changed from a world with surface water billions of years ago to the arid Red Planet of today.

A new analysis of the largest known deposit of carbonate minerals on Mars suggests that the original Martian atmosphere may have already lost most of its carbon dioxide by the era of valley network formation.

“The biggest carbonate deposit on Mars has, at most, twice as much carbon in it as the current Mars atmosphere,” said Bethany Ehlmann of the California Institute of Technology and NASA Jet Propulsion Laboratory, both in Pasadena.

Researchers estimating the amount of carbon held in the ground at the largest known carbonate deposit on Mars used data from five instruments on three NASA Mars orbiters, including physical properties from THEMIS (left) and mineral information from CRISM (right). (NASA/JPL-Caltech/ASU/JHUAPL)

Researchers estimating the amount of carbon held in the ground at the largest known carbonate deposit on Mars used data from five instruments on three NASA Mars orbiters, including physical properties from THEMIS (left) and mineral information from CRISM (right). (NASA/JPL-Caltech/ASU/JHUAPL)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Reconnaissance Orbiter still working hard after 10 years of service

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Ten years after launch, NASA’s Mars Reconnaissance Orbiter (MRO) has revealed the Red Planet’s diversity and activity, returning more data about Mars every week than all six other missions currently active there. And its work is far from over.

The workhorse orbiter now plays a key role in NASA’s Journey to Mars planning. Images from the orbiter, revealing details as small as a desk, aid the analysis of potential landing sites for the 2016 InSight lander and Mars 2020 rover. Data from the orbiter will also be used as part of NASA’s newly announced process to examine and select candidate sites where humans will first explore the Martian surface in the 2030s.

Among the many discoveries by NASA's Mars Reconnaissance Orbiter since the mission was launched on Aug. 12, 2005, are seasonal flows on some steep slopes, possibly shallow seeps of salty water. This July 21, 2015, image from the orbiter's HiRISE camera shows examples within Mars' Valles Marineris. (NASA/JPL-Caltech/Univ. of Arizona)

Among the many discoveries by NASA’s Mars Reconnaissance Orbiter since the mission was launched on Aug. 12, 2005, are seasonal flows on some steep slopes, possibly shallow seeps of salty water. This July 21, 2015, image from the orbiter’s HiRISE camera shows examples within Mars’ Valles Marineris. (NASA/JPL-Caltech/Univ. of Arizona)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA releases two Online Tools for Exploring Mars to the Public

 

Written by Guy Webster and Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – On the three-year anniversary of the Mars landing of NASA’s Curiosity rover, NASA is unveiling two new online tools that open the mysterious terrain of the Red Planet to a new generation of explorers, inviting the public to help with its journey to Mars.

Mars Trek is a free, Web-based application that provides high-quality, detailed visualizations of the planet using real data from 50 years of NASA exploration and allowing astronomers, citizen scientists and students to study the Red Planet’s features.

A screen capture from NASA's new Experience Curiosity website shows the rover in the process of taking its own self-portrait. (NASA/JPL-Caltech)

A screen capture from NASA’s new Experience Curiosity website shows the rover in the process of taking its own self-portrait. (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 


Page 2 of 2312345...»

Personal Controls

Archives