Monday, December 30, 2013

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News


Laser demonstration reveals bright future for space communication

Posted: 23 Dec 2013 03:19 PM PST

The completion of the 30-day Lunar Laser Communication Demonstration or LLCD mission has revealed that the possibility of expanding broadband capabilities in space using laser communications is as bright as expected.

Monday, December 23, 2013

Cassini Sees Saturn and Fascinating Moons | JPL Researcher Receives Presidential Award

 

LATEST NEWS
Cassini Sees Saturn and Moons in Holiday Dress
This holiday season, feast your eyes on images of Saturn and two of its most fascinating moons, Titan and Enceladus, in a care package from NASA's Cassini spacecraft.

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JPL Researcher Receives Presidential Early Career Award
President Obama named five NASA researchers Monday, including one from NASA's Jet Propulsion Laboratory, Pasadena, Calif., as recipients of the 2012 Presidential Early Career Award for Scientists and Engineers (PECASE).

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Sunday, December 22, 2013

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News


Producing electricity on the Moon at night

Posted: 20 Dec 2013 08:34 AM PST

Scientists have proposed a system of mirrors, processed lunar soil and a heat engine to provide energy to vehicles and crew during the lunar night. This would preclude the need for batteries and nuclear power sources such as those used by the Chinese rover that recently landed on the moon. The lunar night lasts approximately 14 days, during which temperatures as low as -150 ÂșC have been recorded. This complicates vehicle movement and equipment functioning on the lunar surface, requiring the transport of heavy batteries from Earth or the use of nuclear energy, as exemplified by the Chinese rover Yutu.

Companion's comets the key to curious exoplanet system?

Posted: 18 Dec 2013 06:58 AM PST

The nearby star Fomalhaut A hosts the most famous planetary system outside our own Solar System, containing both an exoplanet and a spectacular ring of comets. Astronomers have just announced a new discovery with the Herschel Space Observatory that has made this system even more intriguing; the least massive star of the three in the Fomalhaut system, Fomalhaut C, has now been found to host its own comet belt.

Onboard camera captures Juno's approach to Earth

Posted: 11 Dec 2013 10:28 AM PST

When NASA's Juno spacecraft flew past Earth early in October 2013, recording a first-of-a-kind movie of the approach was a special assignment for an onboard camera system known as a star tracker.

ScienceDaily: Extrasolar Planets News

ScienceDaily: Extrasolar Planets News


Companion's comets the key to curious exoplanet system?

Posted: 18 Dec 2013 06:58 AM PST

The nearby star Fomalhaut A hosts the most famous planetary system outside our own Solar System, containing both an exoplanet and a spectacular ring of comets. Astronomers have just announced a new discovery with the Herschel Space Observatory that has made this system even more intriguing; the least massive star of the three in the Fomalhaut system, Fomalhaut C, has now been found to host its own comet belt.

ScienceDaily: Stars News

ScienceDaily: Stars News


Companion's comets the key to curious exoplanet system?

Posted: 18 Dec 2013 06:58 AM PST

The nearby star Fomalhaut A hosts the most famous planetary system outside our own Solar System, containing both an exoplanet and a spectacular ring of comets. Astronomers have just announced a new discovery with the Herschel Space Observatory that has made this system even more intriguing; the least massive star of the three in the Fomalhaut system, Fomalhaut C, has now been found to host its own comet belt.

Onboard camera captures Juno's approach to Earth

Posted: 11 Dec 2013 10:28 AM PST

When NASA's Juno spacecraft flew past Earth early in October 2013, recording a first-of-a-kind movie of the approach was a special assignment for an onboard camera system known as a star tracker.

Saturday, December 21, 2013

ScienceDaily: Black Holes News

ScienceDaily: Black Holes News


Birth of black hole kills the radio star

Posted: 20 Dec 2013 08:40 AM PST

Astronomers have discovered a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole. These exploding stars use all of their energy to emit one last strong beam of highly energetic radiation -- known as a gamma-ray burst -- before they die.

ScienceDaily: Astronomy News

ScienceDaily: Astronomy News


Van Allen Probes shed light on decades-old mystery

Posted: 20 Dec 2013 05:07 PM PST

New research using data from NASA's Van Allen Probes mission helps resolve decades of scientific uncertainty over the origin of ultra-relativistic electrons in Earth's near space environment, and is likely to influence our understanding of planetary magnetospheres throughout the universe.

Starless cloud cores reveal why some stars are bigger than others

Posted: 20 Dec 2013 11:35 AM PST

Massive stars -- those at least 8 times the mass of our Sun -- present an intriguing mystery: how do they grow so large when the vast majority of stars in the Milky Way are considerably smaller? Massive stars -- those at least 8 times the mass of our Sun -- present an intriguing mystery: how do they grow so large when the vast majority of stars in the Milky Way are considerably smaller? To find the answer, astronomers used the Atacama Large Millimeter/submillimeter Array telescope to survey the cores of some of the darkest, coldest, and densest clouds in our Galaxy to search for the telltale signs of star formation.

Birth of black hole kills the radio star

Posted: 20 Dec 2013 08:40 AM PST

Astronomers have discovered a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole. These exploding stars use all of their energy to emit one last strong beam of highly energetic radiation -- known as a gamma-ray burst -- before they die.

Scientists solve a decades-old mystery in Earth's upper atmosphere

Posted: 18 Dec 2013 10:37 AM PST

New research resolves decades of scientific controversy over the origin of ultra-relativistic electrons in the Earth's near space environment, and is likely to influence our understanding of planetary magnetospheres throughout the universe.

ScienceDaily: Galaxies News

ScienceDaily: Galaxies News


Starless cloud cores reveal why some stars are bigger than others

Posted: 20 Dec 2013 11:35 AM PST

Massive stars -- those at least 8 times the mass of our Sun -- present an intriguing mystery: how do they grow so large when the vast majority of stars in the Milky Way are considerably smaller? Massive stars -- those at least 8 times the mass of our Sun -- present an intriguing mystery: how do they grow so large when the vast majority of stars in the Milky Way are considerably smaller? To find the answer, astronomers used the Atacama Large Millimeter/submillimeter Array telescope to survey the cores of some of the darkest, coldest, and densest clouds in our Galaxy to search for the telltale signs of star formation.

ScienceDaily: Stars News

ScienceDaily: Stars News


Starless cloud cores reveal why some stars are bigger than others

Posted: 20 Dec 2013 11:35 AM PST

Massive stars -- those at least 8 times the mass of our Sun -- present an intriguing mystery: how do they grow so large when the vast majority of stars in the Milky Way are considerably smaller? Massive stars -- those at least 8 times the mass of our Sun -- present an intriguing mystery: how do they grow so large when the vast majority of stars in the Milky Way are considerably smaller? To find the answer, astronomers used the Atacama Large Millimeter/submillimeter Array telescope to survey the cores of some of the darkest, coldest, and densest clouds in our Galaxy to search for the telltale signs of star formation.

Birth of black hole kills the radio star

Posted: 20 Dec 2013 08:40 AM PST

Astronomers have discovered a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole. These exploding stars use all of their energy to emit one last strong beam of highly energetic radiation -- known as a gamma-ray burst -- before they die.

ScienceDaily: Cosmic Rays News

ScienceDaily: Cosmic Rays News


Van Allen Probes shed light on decades-old mystery

Posted: 20 Dec 2013 05:07 PM PST

New research using data from NASA's Van Allen Probes mission helps resolve decades of scientific uncertainty over the origin of ultra-relativistic electrons in Earth's near space environment, and is likely to influence our understanding of planetary magnetospheres throughout the universe.

Birth of black hole kills the radio star

Posted: 20 Dec 2013 08:40 AM PST

Astronomers have discovered a new population of exploding stars that "switch off" their radio transmissions before collapsing into a Black Hole. These exploding stars use all of their energy to emit one last strong beam of highly energetic radiation -- known as a gamma-ray burst -- before they die.

Scientists solve a decades-old mystery in Earth's upper atmosphere

Posted: 18 Dec 2013 10:37 AM PST

New research resolves decades of scientific controversy over the origin of ultra-relativistic electrons in the Earth's near space environment, and is likely to influence our understanding of planetary magnetospheres throughout the universe.

Thursday, December 19, 2013

NASA's Asteroid Hunter Spacecraft Returns First Images after Reactivation

LATEST NEWS
NASA's Asteroid Hunter Spacecraft Returns First Images after Reactivation
NASA's Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE), a spacecraft that made the most comprehensive survey to date of asteroids and comets, has returned its first set of test images in preparation for a renewed mission.

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ScienceDaily: Astronomy News

ScienceDaily: Astronomy News


Powerful ancient explosions explain new class of supernovae

Posted: 18 Dec 2013 10:38 AM PST

Astronomers have discovered two of the brightest and most distant supernovae ever recorded, 10 billion light-years away and a hundred times more luminous than a normal supernova.

Europe's billion-star surveyor is ready for launch

Posted: 18 Dec 2013 10:02 AM PST

Europe's billion-star surveyor, Gaia, is due to be launched into space on Thursday 19 December 2013, where it will embark on its mission to create a highly accurate 3D map of our galaxy.

ScienceDaily: Galaxies News

ScienceDaily: Galaxies News


Europe's billion-star surveyor is ready for launch

Posted: 18 Dec 2013 10:02 AM PST

Europe's billion-star surveyor, Gaia, is due to be launched into space on Thursday 19 December 2013, where it will embark on its mission to create a highly accurate 3D map of our galaxy.

ScienceDaily: Stars News

ScienceDaily: Stars News


Powerful ancient explosions explain new class of supernovae

Posted: 18 Dec 2013 10:38 AM PST

Astronomers have discovered two of the brightest and most distant supernovae ever recorded, 10 billion light-years away and a hundred times more luminous than a normal supernova.

Wednesday, December 18, 2013

NASA's Deep Space Network: The Original 'Wireless Network' Turns 50

LATEST NEWS
NASA's Deep Space Network: The Original 'Wireless Network' Turns 50
NASA's Deep Space Network, the world's largest and most powerful communications system for "talking to" spacecraft, will reach a milestone on Dec. 24: the 50th anniversary of its official creation.

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ScienceDaily: Astronomy News

ScienceDaily: Astronomy News


Astronomers develop software for the Gaia satellite

Posted: 17 Dec 2013 07:41 AM PST

Scientists have developed highly complex software for the Gaia astrometry satellite. Daily for five years, the software will track in detail the correct functioning of all on-board systems as well as the quality of the raw scientific data. The launch of Gaia will take place on 19 December 2013 at the spaceport at Kourou in French Guiana. From a distance of 1.5 million kilometers from Earth, the satellite will map the stars of our Milky Way with unprecedented precision.

Hubble watches super star create holiday light show

Posted: 17 Dec 2013 07:40 AM PST

This festive NASA Hubble Space Telescope image resembles a holiday wreath made of sparkling lights. The bright southern hemisphere star RS Puppis, at the center of the image, is swaddled in a gossamer cocoon of reflective dust illuminated by the glittering star. Hubble took a series of photos of light flashes rippling across the nebula in a phenomenon known as a "light echo."

Experts to image event horizon of black hole

Posted: 17 Dec 2013 05:51 AM PST

Was Einstein right? A team of scientists will test the predictions of current theories of gravity, including Einstein's theory of General Relativity. The funding is provided in the form of a 'Synergy Grant', the largest and most competitive type of grant of the ERC.

Massive stars mark out Milky Way's 'missing arms'

Posted: 17 Dec 2013 05:50 AM PST

A 12-year study of massive stars has reaffirmed that our Galaxy has four spiral arms, following years of debate sparked by images taken by NASA's Spitzer Space Telescope that only showed two arms.

ScienceDaily: Black Holes News

ScienceDaily: Black Holes News


Experts to image event horizon of black hole

Posted: 17 Dec 2013 05:51 AM PST

Was Einstein right? A team of scientists will test the predictions of current theories of gravity, including Einstein's theory of General Relativity. The funding is provided in the form of a 'Synergy Grant', the largest and most competitive type of grant of the ERC.

ScienceDaily: Stars News

ScienceDaily: Stars News


Hubble watches super star create holiday light show

Posted: 17 Dec 2013 07:40 AM PST

This festive NASA Hubble Space Telescope image resembles a holiday wreath made of sparkling lights. The bright southern hemisphere star RS Puppis, at the center of the image, is swaddled in a gossamer cocoon of reflective dust illuminated by the glittering star. Hubble took a series of photos of light flashes rippling across the nebula in a phenomenon known as a "light echo."

Massive stars mark out Milky Way's 'missing arms'

Posted: 17 Dec 2013 05:50 AM PST

A 12-year study of massive stars has reaffirmed that our Galaxy has four spiral arms, following years of debate sparked by images taken by NASA's Spitzer Space Telescope that only showed two arms.

ScienceDaily: Nebulae News

ScienceDaily: Nebulae News


Hubble watches super star create holiday light show

Posted: 17 Dec 2013 07:40 AM PST

This festive NASA Hubble Space Telescope image resembles a holiday wreath made of sparkling lights. The bright southern hemisphere star RS Puppis, at the center of the image, is swaddled in a gossamer cocoon of reflective dust illuminated by the glittering star. Hubble took a series of photos of light flashes rippling across the nebula in a phenomenon known as a "light echo."

Tuesday, December 17, 2013

JPL to Test New Supersonic Decelerator Technology

LATEST NEWS
JPL to Test New Supersonic Decelerator Technology
A giant crane towers above NASA's Jet Propulsion Laboratory in Pasadena, Calif., shooting out of a hilly mesa like an oversized erector set, ready to help test components of NASA's Low Density Supersonic Decelerator (LDSD) project. The goal of the challenging technology, led by JPL, is to enable a future mission to Mars or other planetary bodies that uses heavier spacecraft and lands them at locations that were previously not achievable.

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ScienceDaily: Black Holes News

ScienceDaily: Black Holes News


Swift satellite catches a hundred thousand new cosmic X-ray sources

Posted: 16 Dec 2013 05:01 AM PST

Astronomers have published a major list of celestial X-ray sources. The result of many years work, this list of over 150,000 high-energy stars and galaxies will be a vital resource for future astronomical studies.