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


Topic: Gale Crater

NASA’s Mars Curiosity Rover studies Martian Sand Dunes near Mount Sharp

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Curiosity Mars rover has begun an up-close investigation of dark sand dunes up to two stories tall. The dunes are on the rover’s trek up the lower portion of a layered Martian mountain.

The dunes close to Curiosity’s current location are part of “Bagnold Dunes,” a band along the northwestern flank of Mount Sharp inside Gale Crater. Observations of this dune field from orbit show that edges of individual dunes move as much as 3 feet (1 meter) per Earth year.

The rippled surface of the first Martian sand dune ever studied up close fills this Nov. 27, 2015, view of "High Dune" from the Mast Camera on NASA's Curiosity rover. (NASA/JPL-Caltech/MSSS)

The rippled surface of the first Martian sand dune ever studied up close fills this Nov. 27, 2015, view of “High Dune” from the Mast Camera on NASA’s Curiosity rover. (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Rover Curiosity data helps scientists confirm Ancient Lakes on Mars

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A new study from the team behind NASA’s Mars Science Laboratory/Curiosity has confirmed that Mars was once, billions of years ago, capable of storing water in lakes over an extended period of time.

Using data from the Curiosity rover, the team has determined that, long ago, water helped deposit sediment into Gale Crater, where the rover landed more than three years ago. The sediment deposited as layers that formed the foundation for Mount Sharp, the mountain found in the middle of the crater today.

A view from the "Kimberley" formation on Mars taken by NASA's Curiosity rover. (NASA/JPL-Caltech/MSSS)

A view from the “Kimberley” formation on Mars taken by NASA’s Curiosity rover. (NASA/JPL-Caltech/MSSS)

«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
 


NASA’s Mars Curiosity Rover captures image of Sunset on Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The sun dips to a Martian horizon in a blue-tinged sky in images sent home to Earth this week from NASA’s Curiosity Mars rover.

Curiosity used its Mast Camera (Mastcam) to record the sunset during an evening of skywatching on April 15th, 2015.

The imaging was done between dust storms, but some dust remained suspended high in the atmosphere. The sunset observations help researchers assess the vertical distribution of dust in the atmosphere.

NASA's Curiosity Mars rover recorded this view of the sun setting at the close of the mission's 956th Martian day, or sol (April 15th, 2015), from the rover's location in Gale Crater. (NASA/JPL-Caltech/MSSS)

NASA’s Curiosity Mars rover recorded this view of the sun setting at the close of the mission’s 956th Martian day, or sol (April 15th, 2015), from the rover’s location in Gale Crater. (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Curiosity rover measurements of Weather, Soil reveals possibility of Liquid Brine on Mars

 

Written by Guy Webster

NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Martian weather and soil conditions that NASA’s Curiosity rover has measured, together with a type of salt found in Martian soil, could put liquid brine in the soil at night.

Perchlorate identified in Martian soil by the Curiosity mission, and previously by NASA’s Phoenix Mars Lander mission, has properties of absorbing water vapor from the atmosphere and lowering the freezing temperature of water. This has been proposed for years as a mechanism for possible existence of transient liquid brines at higher latitudes on modern Mars, despite the Red Planet’s cold and dry conditions.

The Rover Environmental Monitoring Station (REMS) on NASA's Curiosity Mars rover includes temperature and humidity sensors mounted on the rover's mast. One of the REMS booms extends to the left from the mast in this view. (NASA/JPL-Caltech/MSSS)

The Rover Environmental Monitoring Station (REMS) on NASA’s Curiosity Mars rover includes temperature and humidity sensors mounted on the rover’s mast. One of the REMS booms extends to the left from the mast in this view. (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Curiosity Rover examines Martian Atmosphere to learn about it’s past

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Curiosity rover is using a new experiment to better understand the history of the Martian atmosphere by analyzing xenon.

While NASA’s Curiosity rover concluded its detailed examination of the rock layers of the “Pahrump Hills” in Gale Crater on Mars this winter, some members of the rover team were busy analyzing the Martian atmosphere for xenon, a heavy noble gas.

Curiosity’s Sample Analysis at Mars (SAM) experiment analyzed xenon in the planet’s atmosphere. Since noble gases are chemically inert and do not react with other substances in the air or on the ground, they are excellent tracers of the history of the atmosphere.

A Sample Analysis at Mars (SAM) team member at NASA's Goddard Space Flight Center in Maryland prepares the SAM testbed for an experiment. This test copy of SAM is inside a chamber that can model the pressure and temperature environment that SAM sees inside NASA's Curiosity rover on Mars. (NASA/GSFC)

A Sample Analysis at Mars (SAM) team member at NASA’s Goddard Space Flight Center in Maryland prepares the SAM testbed for an experiment. This test copy of SAM is inside a chamber that can model the pressure and temperature environment that SAM sees inside NASA’s Curiosity rover on Mars. (NASA/GSFC)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Curiosity Rover discovers Nitrogen on Mars

 

Written by Nancy Neal-Jones / William Steigerwald
NASA Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – A team using the Sample Analysis at Mars (SAM) instrument suite aboard NASA’s Curiosity rover has made the first detection of nitrogen on the surface of Mars from release during heating of Martian sediments.

The nitrogen was detected in the form of nitric oxide, and could be released from the breakdown of nitrates during heating. Nitrates are a class of molecules that contain nitrogen in a form that can be used by living organisms. The discovery adds to the evidence that ancient Mars was habitable for life.

This self-portrait of NASA's Mars rover Curiosity combines dozens of exposures taken by the rover's Mars Hand Lens Imager (MAHLI) during the 177th Martian day, or sol, of Curiosity's work on Mars (Feb. 3, 2013), plus three exposures taken during Sol 270 (May 10, 2013) to update the appearance of part of the ground beside the rover.

This self-portrait of NASA’s Mars rover Curiosity combines dozens of exposures taken by the rover’s Mars Hand Lens Imager (MAHLI) during the 177th Martian day, or sol, of Curiosity’s work on Mars (Feb. 3, 2013), plus three exposures taken during Sol 270 (May 10, 2013) to update the appearance of part of the ground beside the rover.

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA’s Mars Curiosity rover uses arm to move sample rock powder to analyzing instrument

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Curiosity Mars rover used its robotic arm Wednesday, March 11th, to sieve and deliver a rock-powder sample to an onboard instrument. The sample was collected last month before the team temporarily suspended rover arm movement pending analysis of a short circuit.

The Chemistry and Mineralogy (CheMin) analytical instrument inside the rover received the sample powder. This sample comes from a rock target called “Telegraph Peak,” the third target drilled during about six months of investigating the “Pahrump Hills” outcrop on Mount Sharp. With this delivery completed, the rover team plans to drive Curiosity away from Pahrump Hills in coming days.

This area at the base of Mount Sharp on Mars includes a pale outcrop, called "Pahrump Hills," that NASA's Curiosity Mars rover investigated from September 2014 to March 2015, and the "Artist's Drive" route toward higher layers of the mountain. (NASA/JPL-Caltech/Univ. of Arizona)

This area at the base of Mount Sharp on Mars includes a pale outcrop, called “Pahrump Hills,” that NASA’s Curiosity Mars rover investigated from September 2014 to March 2015, and the “Artist’s Drive” route toward higher layers of the mountain. (NASA/JPL-Caltech/Univ. of Arizona)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Curiosity Rover takes powder sample from rock at Telegraph Peak

 

Written by Guy Webster
NASA’ Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Curiosity Mars rover used its drill on Tuesday, February 24th to collect sample powder from inside a rock target called “Telegraph Peak.” The target sits in the upper portion of “Pahrump Hills,” an outcrop the mission has been investigating for five months.

The Pahrump Hills campaign previously drilled at two other sites. The outcrop is an exposure of bedrock that forms the basal layer of Mount Sharp. Curiosity’s extended mission, which began last year after a two-year prime mission, is examining layers of this mountain that are expected to hold records of how ancient wet environments on Mars evolved into drier environments.

This hole, with a diameter slightly smaller than a U.S. dime, was drilled by NASA's Curiosity Mars rover into a rock target called "Telegraph Peak." (NASA/JPL-Caltech/MSSS)

This hole, with a diameter slightly smaller than a U.S. dime, was drilled by NASA’s Curiosity Mars rover into a rock target called “Telegraph Peak.” (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Mars Curiosity rover examines powder sample taken at Mount Sharp

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The second bite of a Martian mountain taken by NASA’s Curiosity Mars rover hints at long-ago effects of water that was more acidic than any evidenced in the rover’s first taste of Mount Sharp, a layered rock record of ancient Martian environments.

The rover used a new, low-percussion-level drilling technique to collect sample powder last week from a rock target called “Mojave 2.”

Curiosity reached the base of Mount Sharp five months ago after two years of examining other sites inside Gale Crater and driving toward the mountain at the crater’s center. The first sample of the mountain’s base layer came from a target called “Confidence Hills,” drilled in September.

Gray cuttings from Curiosity's drilling into a target called "Mohave 2" are visible surrounding the sample-collection hole in this Jan. 31, 2015, image from the rover's MAHLI camera. This site in the "Pahrump Hills" outcrop provided the mission's second drilled sample of Mars' Mount Sharp. (NASA/JPL-Caltech/MSSS)

Gray cuttings from Curiosity’s drilling into a target called “Mohave 2” are visible surrounding the sample-collection hole in this Jan. 31, 2015, image from the rover’s MAHLI camera. This site in the “Pahrump Hills” outcrop provided the mission’s second drilled sample of Mars’ Mount Sharp. (NASA/JPL-Caltech/MSSS)

«Read the rest of this article»

Sections: Technology | No Comments
 


Page 1 of 1112345...»

Personal Controls

Archives

    February 2016
    S M T W T F S
    « Jan    
     123456
    78910111213
    14151617181920
    21222324252627
    2829