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Topic: NASA’s Jet Propulsion Laboratory

NASA’s Spitzer Space Telescope captures image of distant Ringed Galaxy

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – It might look like a spoked wheel or even a “Chakram” weapon wielded by warriors like “Xena,” from the fictional TV show, but this ringed galaxy is actually a vast place of stellar life. A newly released image from NASA’s Spitzer Space Telescope shows the galaxy NGC 1291.

Though the galaxy is quite old, roughly 12 billion years, it is marked by an unusual ring where newborn stars are igniting.

“The rest of the galaxy is done maturing,” said Kartik Sheth of the National Radio Astronomy Observatory of Charlottesville, Virginia. “But the outer ring is just now starting to light up with stars.”

A new image from NASA's Spitzer Space Telescope, taken in infrared light, shows where the action is taking place in galaxy NGC 1291. (NASA/JPL-Caltech)

A new image from NASA’s Spitzer Space Telescope, taken in infrared light, shows where the action is taking place in galaxy NGC 1291. (NASA/JPL-Caltech)

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NASA’s Cassini mission images suggests Saturn’s moon Mimas has a frozen core or a liquid ocean

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A new study focused on the interior of Saturn’s icy moon Mimas suggests its cratered surface hides one of two intriguing possibilities: Either the moon’s frozen core is shaped something like a football, or the satellite contains a liquid water ocean.

Researchers used numerous images of Mimas taken by NASA’s Cassini mission to determine how much the moon wobbles as it orbits Saturn. They then evaluated several possible models for how its interior might be arranged, finding two possibilities that fit their data.The study is published in the October 17th issue of the journal Science.

This mosaic of Saturn's moon Mimas was created from images taken by NASA's Cassini spacecraft during its closest flyby of the moon on Feb. 13, 2010. (NASA/JPL-Caltech/Space Science Institute)

This mosaic of Saturn’s moon Mimas was created from images taken by NASA’s Cassini spacecraft during its closest flyby of the moon on Feb. 13, 2010. (NASA/JPL-Caltech/Space Science Institute)

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NASA’s Mars Odyssey Orbiter observes Comet Siding Spring as it passes Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The longest-lived robot ever sent to Mars came through its latest challenge in good health, reporting home on schedule after sheltering behind Mars from possible comet dust.

NASA’s Mars Odyssey was out of communications with Earth, as planned, while conducting observations of comet C/2013 A1 Siding Spring on Sunday, October 19th, as the comet flew near Mars.

Artist's concept of NASA's Mars Odyssey spacecraft. (NASA/JPL)

Artist’s concept of NASA’s Mars Odyssey spacecraft. (NASA/JPL)

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NASA’s Opportunity Rover takes picture of ‘Wdowiak Ridge’ on Mars

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The latest fieldwork site for NASA’s Mars Exploration Rover Opportunity, which has been examining a series of Martian craters since 2004, is on the slope of a prominent hill jutting out of the rim of a large crater and bearing its own much smaller crater. It’s called “Wdowiak Ridge.”

“Wdowiak Ridge sticks out like a sore thumb. We want to understand why this ridge is located off the primary rim of Endeavour Crater and how it fits into the geologic story of this region,” said Opportunity science-team member Jim Rice of the Planetary Science Institute, Tucson, Arizona.

This vista from NASA's Mars Exploration Rover Opportunity shows "Wdowiak Ridge," from left foreground to center, as part of a northward look with the rover's tracks visible at right. (NASA/JPL-Caltech/Cornell Univ./Arizona State Univ)

This vista from NASA’s Mars Exploration Rover Opportunity shows “Wdowiak Ridge,” from left foreground to center, as part of a northward look with the rover’s tracks visible at right. (NASA/JPL-Caltech/Cornell Univ./Arizona State Univ)

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NASA’s Cassini Spacecraft was bathed in beam of electrons during flyby of Saturn’s moon Hyperion

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Static electricity is known to play an important role on Earth’s airless, dusty moon, but evidence of static charge building up on other objects in the solar system has been elusive until now.

A new analysis of data from NASA’s Cassini mission has revealed that, during a 2005 flyby of Saturn’s moon Hyperion, the spacecraft was briefly bathed in a beam of electrons coming from the moon’s electrostatically charged surface.

Cassini obtained this false-color view of Saturn's chaotically tumbling moon Hyperion during a flyby on Sept. 26, 2005. The spacecraft detected a strong electrostatic charge on the moon's surface, a first for any body other than Earth's moon. (NASA/JPL-Caltech/Space Science Institute)

Cassini obtained this false-color view of Saturn’s chaotically tumbling moon Hyperion during a flyby on Sept. 26, 2005. The spacecraft detected a strong electrostatic charge on the moon’s surface, a first for any body other than Earth’s moon. (NASA/JPL-Caltech/Space Science Institute)

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NASA reports Rosetta Spacecraft takes Selfie with Comet

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – A camera aboard the European Space Agency’s Philae lander snapped this “selfie” of one of the Rosetta spacecraft’s 52-foot-long (16-meter) solar arrays, with comet 67P/Churyumov-Gerasimenko hovering in the background some 10 miles (16 kilometers) away.

The image, taken by the Comet Infrared and Visible Analyser (CIVA), was taken on October 7th. Philae, which is connected to the Rosetta orbiter at this time, will make its descent to the surface of the comet on November 12th.

A composite image from a camera on the Rosetta mission's Philae comet lander shows a solar array, with comet 67P/Churyumov-Gerasimenko in the background. (ESA/Rosetta/Philae/CIVA)

A composite image from a camera on the Rosetta mission’s Philae comet lander shows a solar array, with comet 67P/Churyumov-Gerasimenko in the background. (ESA/Rosetta/Philae/CIVA)

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NASA Scientists work with new material “Metallic Glasses” that can be molded like Plastic but retains strength of Metal

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Open a door and watch what happens — the hinge allows it to open and close, but doesn’t permanently bend. This simple concept of mechanical motion is vital for making all kinds of movable structures, including mirrors and antennas on spacecraft.

Material scientists at NASA’s Jet Propulsion Laboratory in Pasadena, California, are working on new, innovative methods of creating materials that can be used for motion-based mechanisms.

When a device moves because metal is flexing but isn’t permanently deformed, that’s called a compliant mechanism.

This image shows components of a mirror structure that can be rotated very precisely by flexing parts made of a material scientists call "bulk metallic glass." (NASA/JPL-Caltech)

This image shows components of a mirror structure that can be rotated very precisely by flexing parts made of a material scientists call “bulk metallic glass.” (NASA/JPL-Caltech)

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NASA Scientists use satellite data to find Methane Hot Spot in United States

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – One small “hot spot” in the U.S. Southwest is responsible for producing the largest concentration of the greenhouse gas methane seen over the United States – more than triple the standard ground-based estimate — according to a new study of satellite data by scientists at NASA and the University of Michigan.

Methane is very efficient at trapping heat in the atmosphere and, like carbon dioxide, it contributes to global warming. The hot spot, near the Four Corners intersection of Arizona, Colorado, New Mexico and Utah, covers only about 2,500 square miles (6,500 square kilometers), or half the size of Connecticut.

The Four Corners area (red) is the major U.S. hot spot for methane emissions in this map showing how much emissions varied from average background concentrations from 2003-2009 (dark colors are lower than average; lighter colors are higher). (NASA/JPL-Caltech/University of Michigan)

The Four Corners area (red) is the major U.S. hot spot for methane emissions in this map showing how much emissions varied from average background concentrations from 2003-2009 (dark colors are lower than average; lighter colors are higher). (NASA/JPL-Caltech/University of Michigan)

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NASA Satellites, Telescopes ready for Comet Siding Spring’s flyby of Mars

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA’s extensive fleet of science assets, particularly those orbiting and roving Mars, have front row seats to image and study a once-in-a-lifetime comet flyby on Sunday, October 19th.

Comet C/2013 A1, also known as comet Siding Spring, will pass within about 87,000 miles (139,500 kilometers) of the Red Planet — less than half the distance between Earth and our moon and less than one-tenth the distance of any known comet flyby of Earth.

NASA Science Fleet Prepares for Mars Comet. (NASA)

NASA Science Fleet Prepares for Mars Comet. (NASA)

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NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) finds brightest Dead Star every recorded

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Astronomers have found a pulsating, dead star beaming with the energy of about 10 million suns. This is the brightest pulsar – a dense stellar remnant left over from a supernova explosion – ever recorded. The discovery was made with NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR.

“You might think of this pulsar as the ‘Mighty Mouse’ of stellar remnants,” said Fiona Harrison, the NuSTAR principal investigator at the California Institute of Technology in Pasadena. “It has all the power of a black hole, but with much less mass.”

The discovery appears in a new report in the Thursday, October 9th, issue of the journal Nature.

High-energy X-rays streaming from a rare and mighty pulsar (magenta), the brightest found to date, can be seen in this new image combining multi-wavelength data from three telescopes. (NASA/JPL-Caltech/SAO/NOAO)

High-energy X-rays streaming from a rare and mighty pulsar (magenta), the brightest found to date, can be seen in this new image combining multi-wavelength data from three telescopes. (NASA/JPL-Caltech/SAO/NOAO)

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