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Topic: NASA

NASA reports the Moon’s Water maybe widely distributed across the Surface

 

Written by Elizabeth Zubritsky
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – A new analysis of data from two lunar missions finds evidence that the Moon’s water is widely distributed across the surface and is not confined to a particular region or type of terrain. The water appears to be present day and night, though it’s not necessarily easily accessible.

The findings could help researchers understand the origin of the Moon’s water and how easy it would be to use as a resource. If the Moon has enough water, and if it’s reasonably convenient to access, future explorers might be able to use it as drinking water or to convert it into hydrogen and oxygen for rocket fuel or oxygen to breathe.

If the Moon has enough water, and if it's reasonably convenient to access, future explorers might be able to use it as a resource. (NASA's Goddard Space Flight Center)

If the Moon has enough water, and if it’s reasonably convenient to access, future explorers might be able to use it as a resource. (NASA’s Goddard Space Flight Center)

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NASA’s Mars InSight Lander will study the Deep Interior of Mars

 

NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Mars InSight lander team is preparing to ship the spacecraft from Lockheed Martin Space in Denver, where it was built and tested, to Vandenberg Air Force Base in California, where it will become the first interplanetary mission to launch from the West Coast. The project is led by NASA’s Jet Propulsion Laboratory in Pasadena, California.

NASA has a long and successful track record at Mars. Since 1965, it has flown by, orbited, landed and roved across the surface of the Red Planet. What can InSight — planned for launch in May — do that hasn’t been done before?

An artist's rendition of the InSight lander operating on the surface of Mars. (NASA/JPL-Caltech)

An artist’s rendition of the InSight lander operating on the surface of Mars. (NASA/JPL-Caltech)

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NASA study shows Accelerating Antarctic Ice Loss

 

Written by Pat Brennan
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A NASA study based on an innovative technique for crunching torrents of satellite data provides the clearest picture yet of changes in Antarctic ice flow into the ocean. The findings confirm accelerating ice losses from the West Antarctic Ice Sheet and reveal surprisingly steady rates of flow from its much larger neighbor to the east.

The computer-vision technique crunched data from hundreds of thousands of NASA-U.S. Geological Survey Landsat satellite images to produce a high-precision picture of changes in ice-sheet motion.

The flow of Antarctic ice, derived from feature tracking of Landsat imagery. (NASA Earth Observatory)

The flow of Antarctic ice, derived from feature tracking of Landsat imagery. (NASA Earth Observatory)

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NASA Leads Efforts in Planetary Defense Five Years after the Chelyabinsk Meteor

 

NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – A blinding flash, a loud sonic boom, and shattered glass everywhere. This is what the people of Chelyabinsk, Russia, experienced five years ago when an asteroid exploded over their city the morning of February 15th, 2013.

The house-sized asteroid entered the atmosphere over Chelyabinsk at over eleven miles per second and blew apart 14 miles above the ground. The explosion released the energy equivalent of around 440,000 tons of TNT and generated a shock wave that blew out windows over 200 square miles and damaged some buildings. Over 1,600 people were injured in the blast, mostly due to broken glass.

This image of a vapor trail was captured about 125 miles (200 kilometers) from the Chelyabinsk meteor event, about one minute after the house-sized asteroid entered Earth’s atmosphere. (Alex Alishevskikh)

This image of a vapor trail was captured about 125 miles (200 kilometers) from the Chelyabinsk meteor event, about one minute after the house-sized asteroid entered Earth’s atmosphere. (Alex Alishevskikh)

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NASA ends Tropospheric Emission Spectrometer instrument’s mission

 

Written by Carol Rasmussen
NASA’s Earth Science News Team

NASA - National Aeronautics and Space AdministrationWashington, D.C. – On January 31st, NASA ended the Tropospheric Emission Spectrometer’s (TES) almost 14-year career of discovery. Launched in 2004 on NASA’s Aura spacecraft, TES was the first instrument designed to monitor ozone in the lowest layers of the atmosphere directly from space. Its high-resolution observations led to new measurements of atmospheric gases that have altered our understanding of the Earth system.

TES was planned for a five-year mission but far outlasted that term.

TES collected spectral "signatures," illustrated here, of ozone and other gases in the lower atmosphere. (NASA)

TES collected spectral “signatures,” illustrated here, of ozone and other gases in the lower atmosphere. (NASA)

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NASA’s Mars Rover Opportunity makes 5,000th Martian Dawn

 

NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – The Sun rose on NASA’s solar-powered Mars rover Opportunity for the 5,000th time on Saturday, sending rays of energy to a golf-cart-size robotic field geologist that continues to provide revelations about the Red Planet.

“Five thousand sols after the start of our 90-sol mission, this amazing rover is still showing us surprises on Mars,” said Opportunity Project Manager John Callas, of NASA’s Jet Propulsion Laboratory, Pasadena, California.

NASA's Mars Exploration Rover Opportunity recorded the dawn of the rover's 4,999th Martian day, or sol, with its Panoramic Camera (Pancam) on Feb. 15, 2018, yielding this processed, approximately true-color scene. (NASA/JPL-Caltech/Cornell/Arizona State Univ./Texas A&M)

NASA’s Mars Exploration Rover Opportunity recorded the dawn of the rover’s 4,999th Martian day, or sol, with its Panoramic Camera (Pancam) on Feb. 15, 2018, yielding this processed, approximately true-color scene. (NASA/JPL-Caltech/Cornell/Arizona State Univ./Texas A&M)

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NASA’s Mars Reconnaissance Orbiter puts itself into Standby Mode

 

NASA’s Jet Propulsion Laboratory

Mars Reconnaissance Orbiter Mission Status Report

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Mars Reconnaissance Orbiter (MRO), at Mars since 2006, put itself into a precautionary standby mode on February 15th in response to sensing an unexpectedly low battery voltage.

The orbiter is solar-powered but relies on a pair of nickel-hydrogen batteries during periods when it is in the shadow of Mars for a portion of each orbit. The two are used together, maintaining almost identical charge during normal operations.

Artist concept of Mars Reconnaissance Orbiter. (NASA/JPL)

Artist concept of Mars Reconnaissance Orbiter. (NASA/JPL)

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NASA’s Mars Exploration Rover Opportunity continues to make discoveries on Mars

 

NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA’s Mars Exploration Rover Opportunity keeps providing surprises about the Red Planet, most recently with observations of possible “rock stripes.”

The ground texture seen in recent images from the rover resembles a smudged version of very distinctive stone stripes on some mountain slopes on Earth that result from repeated cycles of freezing and thawing of wet soil. But it might also be due to wind, downhill transport, other processes or a combination.

Textured rows on the ground in this portion of "Perseverance Valley" are under investigation by NASA's Mars Exploration Rover Opportunity, which used its Navigation Camera to take the component images of this downhill-looking scene. The rover reaches its 5,000th Martian day, or sol, on Feb. 16, 2018. (NASA/JPL-Caltech)

Textured rows on the ground in this portion of “Perseverance Valley” are under investigation by NASA’s Mars Exploration Rover Opportunity, which used its Navigation Camera to take the component images of this downhill-looking scene. The rover reaches its 5,000th Martian day, or sol, on Feb. 16, 2018. (NASA/JPL-Caltech)

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NASA’s Mars 2020 Rover mission to take Meteorite back to Mars

 

NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A chunk of Mars will soon be returning home.

A piece of a meteorite called Sayh al Uhaymir 008 (SaU008) will be carried on board NASA’s Mars 2020 rover mission, now being built at the agency’s Jet Propulsion Laboratory in Pasadena, California. This chunk will serve as target practice for a high-precision laser on the rover’s arm.

Mars 2020’s goal is ambitious: collect samples from the Red Planet’s surface that a future mission could potentially return to Earth. One of the rover’s many tools will be a laser designed to illuminate rock features as fine as a human hair.

Rohit Bhartia of NASA's Mars 2020 mission holds a slice of a meteorite scientists have determined came from Mars. One of two slices will be used for testing a laser instrument for NASA's Mars 2020 rover while it's still on Earth; the other slice will go to Mars onboard the rover. (NASA/JPL-Caltech)

Rohit Bhartia of NASA’s Mars 2020 mission holds a slice of a meteorite scientists have determined came from Mars. One of two slices will be used for testing a laser instrument for NASA’s Mars 2020 rover while it’s still on Earth; the other slice will go to Mars onboard the rover. (NASA/JPL-Caltech)

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NASA reports New Study shows Global Sea Level Rise has Accelerated over past 25 years

 

NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – The rate of global sea level rise has been accelerating in recent decades, rather than increasing steadily, according to a new study based on 25 years of NASA and European satellite data.

This acceleration, driven mainly by increased melting in Greenland and Antarctica, has the potential to double the total sea level rise projected by 2100 when compared to projections that assume a constant rate of sea level rise, according to lead author Steve Nerem. Nerem is a professor of Aerospace Engineering Sciences at the University of Colorado Boulder, a fellow at Colorado’s Cooperative Institute for Research in Environmental Sciences (CIRES), and a member of NASA’s Sea Level Change team.

Global sea level rise is accelerating incrementally over time rather than increasing at a steady rate, as previously thought, according to a new study based on 25 years of NASA and European satellite data. (NASA's Goddard Space Flight Center/Kathryn Mersmann)

Global sea level rise is accelerating incrementally over time rather than increasing at a steady rate, as previously thought, according to a new study based on 25 years of NASA and European satellite data. (NASA’s Goddard Space Flight Center/Kathryn Mersmann)

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