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Topic: NASA’s Science Mission Directorate

NASA’s Wide-field Infrared Survey Explorer (WISE) data used to find Bright Distant Galaxy

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A remote galaxy shining with the light of more than 300 trillion suns has been discovered using data from NASA’s Wide-field Infrared Survey Explorer (WISE).

The galaxy is the most luminous galaxy found to date and belongs to a new class of objects recently discovered by WISE — extremely luminous infrared galaxies, or ELIRGs.

“We are looking at a very intense phase of galaxy evolution,” said Chao-Wei Tsai of NASA’s Jet Propulsion Laboratory in Pasadena, California, lead author of a new report appearing in the May 22nd issue of The Astrophysical Journal. “This dazzling light may be from the main growth spurt of the galaxy’s black hole.”

This artist's concept depicts the current record holder for the most luminous galaxy in the universe. (NASA/JPL-Caltech)

This artist’s concept depicts the current record holder for the most luminous galaxy in the universe. (NASA/JPL-Caltech)

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NASA’s Dawn spacecraft takes closest images yet of Bright Spots on Dwarf Planet Ceres

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Dawn mission captured a sequence of images, taken for navigation purposes, of dwarf planet Ceres on May 16th, 2015. The image showcases the group of the brightest spots on Ceres, which continue to mystify scientists. It was taken from a distance of 4,500 miles (7,200 kilometers) and has a resolution of 2,250 feet (700 meters) per pixel.

“Dawn scientists can now conclude that the intense brightness of these spots is due to the reflection of sunlight by highly reflective material on the surface, possibly ice,” Christopher Russell, principal investigator for the Dawn mission from the University of California, Los Angeles, said recently.

This image of Ceres is part of a sequence taken by NASA's Dawn spacecraft on May 16, 2015, from a distance of 4,500 miles (7,200 kilometers). (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA)

This image of Ceres is part of a sequence taken by NASA’s Dawn spacecraft on May 16, 2015, from a distance of 4,500 miles (7,200 kilometers). (NASA/JPL-Caltech/UCLA/MPS/DLR/IDA)

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After 6 years, NASA’s Kepler space telescope has found over 1,000 planets and counting

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Kepler spacecraft began hunting for planets outside our solar system on May 12th, 2009. From the trove of data collected, we have learned that planets are common, that most sun-like stars have at least one planet and that nature makes planets with unimaginable diversity.

Kepler launched on March 6th, 2009. Its mission was to survey a portion of our galaxy to determine what fraction of stars might harbor potentially habitable, Earth-sized exoplanets, or planets that orbit other stars.

The artistic concept shows NASA's planet-hunting Kepler spacecraft operating in a new mission profile called K2. Using publicly available data, astronomers may have confirmed K2's first discovery of star with more than one planet. (NASA Ames/JPL-Caltech/T Pyle)

The artistic concept shows NASA’s planet-hunting Kepler spacecraft operating in a new mission profile called K2. Using publicly available data, astronomers may have confirmed K2’s first discovery of star with more than one planet. (NASA Ames/JPL-Caltech/T Pyle)

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NASA experiments show Dark Material on Jupiter’s moon Europa likely Sea Salt

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA laboratory experiments suggest the dark material coating some geological features of Jupiter’s moon Europa is likely sea salt from a subsurface ocean, discolored by exposure to radiation.

The presence of sea salt on Europa’s surface suggests the ocean is interacting with its rocky seafloor — an important consideration in determining whether the icy moon could support life.

The study is accepted for publication in the journal Geophysical Research Letters and is available online.

The puzzling, fascinating surface of Jupiter's icy moon Europa looms large in this reprocessed color view, made from images taken by NASA's Galileo spacecraft in the late 1990s. (NASA/JPL-Caltech/SETI Institute)

The puzzling, fascinating surface of Jupiter’s icy moon Europa looms large in this reprocessed color view, made from images taken by NASA’s Galileo spacecraft in the late 1990s. (NASA/JPL-Caltech/SETI Institute)

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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)

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NASA’s Mars Curiosity Rover takes timeout to investigate Valley on Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Researchers slightly detoured NASA’s Curiosity Mars rover from the mission’s planned path in recent days for a closer look at a hillside site where an ancient valley had been carved out and refilled.

The rover made observations and measurements there to address questions about how the channel formed and filled. Then it resumed driving up Mount Sharp, where the mission is studying the rock layers. The layers reveal chapters in how environmental conditions and the potential to support microbial life changed in Mars’ early history.

This April 16th, 2015, panorama from the Mast Camera on NASA's Curiosity Mars rover shows a detailed view toward two areas on lower Mount Sharp chosen for close-up inspection in subsequent weeks: "Mount Shields" and "Logan Pass." (NASA/JPL-Caltech/MSSS)

This April 16th, 2015, panorama from the Mast Camera on NASA’s Curiosity Mars rover shows a detailed view toward two areas on lower Mount Sharp chosen for close-up inspection in subsequent weeks: “Mount Shields” and “Logan Pass.” (NASA/JPL-Caltech/MSSS)

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NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) discovers lopsided Star Explosion

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, has found evidence that a massive star exploded in a lopsided fashion, sending ejected material flying in one direction and the core of the star in the other.

The findings offer the best proof yet that star explosions of this type, called Type II or core-collapse supernovae, are inherently asymmetrical, a phenomenon that had been difficult to prove before now.

The still unraveling remains of supernova 1987A are shown here in this image taken by NASA's Hubble Space Telescope. The bright ring consists of material ejected from the dying star before it detonated. The ring is being lit up by the explosion's shock wave. (ESA/Hubble & NASA)

The still unraveling remains of supernova 1987A are shown here in this image taken by NASA’s Hubble Space Telescope. The bright ring consists of material ejected from the dying star before it detonated. The ring is being lit up by the explosion’s shock wave. (ESA/Hubble & NASA)

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NASA monitors increased Traffic orbiting Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA has beefed up a process of traffic monitoring, communication and maneuver planning to ensure that Mars orbiters do not approach each other too closely.

Last year’s addition of two new spacecraft orbiting Mars brought the census of active Mars orbiters to five, the most ever. NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) and India’s Mars Orbiter Mission joined the 2003 Mars Express from ESA (the European Space Agency) and two from NASA: the 2001 Mars Odyssey and the 2006 Mars Reconnaissance Orbiter (MRO).

This graphic depicts the relative shapes and distances from Mars for five active orbiter missions plus the planet's two natural satellites. It illustrates the potential for intersections of the spacecraft orbits. (NASA/JPL-Caltech)

This graphic depicts the relative shapes and distances from Mars for five active orbiter missions plus the planet’s two natural satellites. It illustrates the potential for intersections of the spacecraft orbits. (NASA/JPL-Caltech)

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NASA’s MESSENGER Spacecraft ends mission, crashes into Mercury

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Mission controllers at the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland, have confirmed that MESSENGER slammed into the surface of Mercury on April 30th at 3:26pm EDT.

It had used the last of its propellant on April 24th and could no longer maintain a stable orbit. Traveling some 8,750 mph, the plummeting spacecraft made an unseen crater on the side of the planet facing away from Earth.

The colors of the solar system's innermost planet are enhanced in this tantalizing view, based on global image data from the Mercury-orbiting MESSENGER spacecraft. (NASA / JHU Applied Physics Lab / Carnegie Inst. Washington)

The colors of the solar system’s innermost planet are enhanced in this tantalizing view, based on global image data from the Mercury-orbiting MESSENGER spacecraft. (NASA / JHU Applied Physics Lab / Carnegie Inst. Washington)

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NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) hears the possible sounds of Dead Stars

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Peering into the heart of the Milky Way galaxy, NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) has spotted a mysterious glow of high-energy X-rays that, according to scientists, could be the “howls” of dead stars as they feed on stellar companions.

“We can see a completely new component of the center of our galaxy with NuSTAR’s images,” said Kerstin Perez of Columbia University in New York, lead author of a new report on the findings in the journal Nature. “We can’t definitively explain the X-ray signal yet — it’s a mystery. More work needs to be done.”

NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has captured a new high-energy X-ray view (magenta) of the bustling center of our Milky Way galaxy. (NASA/JPL-Caltech)

NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, has captured a new high-energy X-ray view (magenta) of the bustling center of our Milky Way galaxy. (NASA/JPL-Caltech)

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