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Topic: NASA

NASA’s THEMIS spacecraft observes Earth’s vibrating Magnetic Field

 

Written by Lina Tran
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – The majestic auroras have captivated humans for thousands of years, but their nature – the fact that the lights are electromagnetic and respond to solar activity – was only realized in the last 150 years.

Thanks to coordinated multi-satellite observations and a worldwide network of magnetic sensors and cameras, close study of auroras has become possible over recent decades. Yet, auroras continue to mystify, dancing far above the ground to some, thus far, undetected rhythm.

An artist’s rendering (not to scale) of a cross-section of the magnetosphere, with the solar wind on the left in yellow and magnetic field lines emanating from the Earth in blue. The five THEMIS probes were well-positioned to directly observe one particular magnetic field line as it oscillated back and forth roughly every six minutes. In this unstable environment, electrons in near-Earth space, depicted as white dots, stream rapidly down magnetic field lines towards Earth’s poles. There, they interact with oxygen and nitrogen particles in the upper atmosphere, releasing photons and brightening a specific region of the aurora. (Emmanuel Masongsong/UCLA EPSS/NASA)

An artist’s rendering (not to scale) of a cross-section of the magnetosphere, with the solar wind on the left in yellow and magnetic field lines emanating from the Earth in blue. The five THEMIS probes were well-positioned to directly observe one particular magnetic field line as it oscillated back and forth roughly every six minutes. In this unstable environment, electrons in near-Earth space, depicted as white dots, stream rapidly down magnetic field lines towards Earth’s poles. There, they interact with oxygen and nitrogen particles in the upper atmosphere, releasing photons and brightening a specific region of the aurora. (Emmanuel Masongsong/UCLA EPSS/NASA)

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NASA’s Mars Curiosity rover takes images of Rock Outcrops on Mars

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The layered geologic past of Mars is revealed in stunning detail in new color images returned by NASA’s Curiosity Mars rover, which is currently exploring the “Murray Buttes” region of lower Mount Sharp. The new images arguably rival photos taken in U.S. National Parks.

Curiosity took the images with its Mast Camera (Mastcam) on September 8th. The rover team plans to assemble several large, color mosaics from the multitude of images taken at this location in the near future.

Curiosity got close to this outcrop on Sept. 9, 2016, which displays finely layered rocks. (NASA/JPL-Caltech/MSSS)

Curiosity got close to this outcrop on Sept. 9, 2016, which displays finely layered rocks. (NASA/JPL-Caltech/MSSS)

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NASA’s OSIRIS-REx Spacecraft on it’s way to asteroid Bennu

 

Written by Dwayne Brown / Laurie Cantillo
NASA Headquarters

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA’s first asteroid sampling mission launched into space at 7:05pm EDT Thursday from Cape Canaveral Air Force Station in Florida, beginning a journey that could revolutionize our understanding of the early solar system.

“Ee celebrate a huge milestone for this remarkable mission, and for this mission team,” said NASA Administrator Charles Bolden. “We’re very excited about what this mission can tell us about the origin of our solar system, and we celebrate the bigger picture of science that is helping us make discoveries and accomplish milestones that might have been science fiction yesterday, but are science facts today.”

NASA’s OSIRIS-REx Spacecraft was launched into space at 7:05pm EDT Thursday, September 8th from Cape Canaveral Air Force Station in Florida. (NASA)

NASA’s OSIRIS-REx Spacecraft was launched into space at 7:05pm EDT Thursday, September 8th from Cape Canaveral Air Force Station in Florida. (NASA)

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NASA’s ISS-RapidScat instrument being looked at after two power anomalies

 

Written by Alan Buis
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Mission managers at NASA’s Jet Propulsion Laboratory, Pasadena, California, and NASA’s Marshall Space Flight Center, Huntsville, Alabama, are assessing two power system-related anomalies affecting the operation of NASA’s ISS-RapidScat instrument aboard the International Space Station. RapidScat measures surface wind speeds and directions over the ocean.

RapidScat is currently deactivated and in a stable configuration. A RapidScat project anomaly response team has been formed, working in conjunction with the space station anomaly response team. RapidScat will remain deactivated as the investigation continues.

Artist's rendering of NASA's ISS-RapidScat instrument (inset), which launched to the International Space Station in 2014 to measure ocean surface wind speed and direction and help improve weather forecasts, including hurricane monitoring. (NASA/JPL-Caltech/Johnson Space Center)

Artist’s rendering of NASA’s ISS-RapidScat instrument (inset), which launched to the International Space Station in 2014 to measure ocean surface wind speed and direction and help improve weather forecasts, including hurricane monitoring. (NASA/JPL-Caltech/Johnson Space Center)

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NASA’s Spitzer Space Telescope captures Nebulae image that looks like starship Enterprise

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Just in time for the 50th anniversary of the TV series “Star Trek,” which first aired September 8th,1966, a new infrared image from NASA’s Spitzer Space Telescope may remind fans of the historic show.

Since ancient times, people have imagined familiar objects when gazing at the heavens. There are many examples of this phenomenon, known as pareidolia, including the constellations and the well-known nebulae named Ant, Stingray and Hourglass.

Here is the nebulaes seen by NASA's Spitzer Space Telescope. (NASA/JPL-Caltech)

Here is the nebulaes seen by NASA’s Spitzer Space Telescope. (NASA/JPL-Caltech)

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NASA’s Cassini spacecraft images reveals Dunes on Saturn’s moon Titan

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – New scenes from a frigid alien landscape are coming to light in recent radar images of Saturn’s largest moon, Titan, from NASA’s Cassini spacecraft.

Cassini obtained the views during a close flyby of Titan on July 25th, when the spacecraft came as close as 607 miles (976 kilometers) from the giant moon. The spacecraft’s radar instrument is able to penetrate the dense, global haze that surrounds Titan, to reveal fine details on the surface.

This synthetic-aperture radar (SAR) image was obtained by NASA's Cassini spacecraft on July 25, 2016, during its "T-121" pass over Titan's southern latitudes. (NASA/JPL-Caltech/ASI/Université Paris-Diderot)

This synthetic-aperture radar (SAR) image was obtained by NASA’s Cassini spacecraft on July 25, 2016, during its “T-121” pass over Titan’s southern latitudes. (NASA/JPL-Caltech/ASI/Université Paris-Diderot)

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NASA’s Game Changing Development Program looks for idea for putting spacecraft together in space

 

Written by Joe Atkinson
NASA’s Langley Research Center

NASA - National Aeronautics and Space AdministrationHampton, VA – In the 2017 Breakthrough, Innovative, and Game-changing (BIG) Idea Challenge, NASA is engaging university-level students in its quest to reduce the cost of deep space exploration.

NASA’s Game Changing Development Program (GCD), managed by the agency’s Space Technology Mission Directorate, and the National Institute of Aerospace (NIA) are seeking novel and robust concepts for in-space assembly of spacecraft — particularly tugs, propelled by solar electric propulsion (SEP), that transfer payloads from low earth orbit (LEO) to a lunar distant retrograde orbit (LDRO).

NASA’s Game Changing Development Program, managed by the agency’s Space Technology Mission Directorate, and the National Institute of Aerospace are seeking novel and robust concepts for in-space assembly of spacecraft – particularly tugs, propelled by solar electric propulsion, that transfer payloads from low earth orbit to a lunar distant retrograde orbit. (Analytical Mechanics Associates)

NASA’s Game Changing Development Program, managed by the agency’s Space Technology Mission Directorate, and the National Institute of Aerospace are seeking novel and robust concepts for in-space assembly of spacecraft – particularly tugs, propelled by solar electric propulsion, that transfer payloads from low earth orbit to a lunar distant retrograde orbit. (Analytical Mechanics Associates)

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NASA’s Solar Dynamics Observatory sees Earth and Moon in Double Eclipse

 

Written by Lina Tran
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Early in the morning of September 1st, 2016, NASA’s Solar Dynamics Observatory, or SDO, caught both Earth and the moon crossing in front of the sun. SDO keeps a constant eye on the sun, but during SDO’s semiannual eclipse seasons, Earth briefly blocks SDO’s line of sight each day – a consequence of SDO’s geosynchronous orbit.

On September 1st, Earth completely eclipsed the sun from SDO’s perspective just as the moon began its journey across the face of the sun. The end of the Earth eclipse happened just in time for SDO to catch the final stages of the lunar transit.

You can tell Earth and the moon’s shadows apart by their edges: Earth’s is fuzzy, while the moon’s is sharp and distinct. This is because Earth’s atmosphere absorbs some of the sun’s light, creating an ill-defined edge. On the other hand, the moon has no atmosphere, producing a crisp horizon. (NASA/SDO)

You can tell Earth and the moon’s shadows apart by their edges: Earth’s is fuzzy, while the moon’s is sharp and distinct. This is because Earth’s atmosphere absorbs some of the sun’s light, creating an ill-defined edge. On the other hand, the moon has no atmosphere, producing a crisp horizon.
(NASA/SDO)

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NASA’s Juno spacecraft photos reveal unusual North Pole on Jupiter

 

Written by DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Juno spacecraft has sent back the first-ever images of Jupiter’s north pole, taken during the spacecraft’s first flyby of the planet with its instruments switched on. The images show storm systems and weather activity unlike anything previously seen on any of our solar system’s gas-giant planets.

Juno successfully executed the first of 36 orbital flybys on August 27th when the spacecraft came about 2,500 miles (4,200 kilometers) above Jupiter’s swirling clouds.

NASA's Juno spacecraft captured this view as it closed in on Jupiter's north pole, about two hours before closest approach on Aug. 27, 2016. Image (NASA/JPL-Caltech/SwRI/MSSS)

NASA’s Juno spacecraft captured this view as it closed in on Jupiter’s north pole, about two hours before closest approach on Aug. 27, 2016. Image (NASA/JPL-Caltech/SwRI/MSSS)

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NASA gives green light to Mars Insight Mission Launch

 

Written by Guy Webster
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA is moving forward with a spring 2018 launch of its InSight mission to study the deep interior of Mars, following final approval this week by the agency’s Science Mission Directorate.

The Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission was originally scheduled to launch in March of this year, but NASA suspended launch preparations in December due to a vacuum leak in its prime science instrument, the Seismic Experiment for Interior Structure (SEIS).

NASA has set a new launch opportunity, beginning May 5, 2018, for the InSight mission to Mars. InSight is the first mission dedicated to investigating the deep interior of Mars. (NASA/JPL-Caltech)

NASA has set a new launch opportunity, beginning May 5, 2018, for the InSight mission to Mars. InSight is the first mission dedicated to investigating the deep interior of Mars. (NASA/JPL-Caltech)

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