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NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft ready to enter Mars orbit

 

Written by Izumi Hansen and Elizabeth Zubritsky
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft is nearing its scheduled September 21st insertion into Martian orbit after completing a 10-month interplanetary journey of 442 million miles (711 million kilometers).

Flight Controllers at Lockheed Martin Space Systems in Littleton, Colorado, will be responsible for the health and safety of the spacecraft throughout the process. The spacecraft’s mission timeline will place the spacecraft in orbit at approximately 6:50pm PDT (9:50pm EDT).

NASA's MAVEN spacecraft is quickly approaching Mars on a mission to study its upper atmosphere. When it arrives on September 21, 2014, MAVEN's winding journey from Earth will culminate with a dramatic engine burn, pulling the spacecraft into an elliptical orbit.

NASA’s MAVEN spacecraft is quickly approaching Mars on a mission to study its upper atmosphere. When it arrives on September 21, 2014, MAVEN’s winding journey from Earth will culminate with a dramatic engine burn, pulling the spacecraft into an elliptical orbit.

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NASA says there will be a bright colorful Lunar Eclipse October 8th

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – On Wednesday morning, October 8th, not long before sunrise, the bright full Moon over North America will turn a lovely shade of celestial red. It’s a lunar eclipse—visible from all parts of the USA.

“It promises to be a stunning sight, even from the most light polluted cities,” says NASA’s longtime eclipse expert Fred Espenak. “I encourage everyone, especially families with curious children, to go out and enjoy the event.”

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NASA’s Nuclear Spectroscopic Telescope Array (NuSTAR) discovers source of Intense Gamma Rays

 

Written by Whitney Clavin
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Our Milky Way galaxy is littered with the still-sizzling remains of exploded stars.

When the most massive stars explode as supernovas, they don’t fade into the night, but sometimes glow ferociously with high-energy gamma rays. What powers these energetic stellar remains?

NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, is helping to untangle the mystery. The observatory’s high-energy X-ray eyes were able to peer into a particular site of powerful gamma rays and confirm the source: A spinning, dead star called a pulsar.

The blue dot in this image marks the spot of an energetic pulsar -- the magnetic, spinning core of star that blew up in a supernova explosion. (NASA/JPL-Caltech/SAO)

The blue dot in this image marks the spot of an energetic pulsar — the magnetic, spinning core of star that blew up in a supernova explosion. (NASA/JPL-Caltech/SAO)

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NASA’s Dawn Spacecraft out of Safe Mode and back to Normal Operational State

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – The Dawn spacecraft has resumed normal ion thrusting after the thrusting unexpectedly stopped and the spacecraft entered safe mode on September 11th. That anomaly occurred shortly before a planned communication with NASA’s Deep Space Network that morning. The spacecraft was not performing any special activities at the time.

Engineers immediately began working to restore the spacecraft to its normal operational state. The team determined the source of the problems, corrected them, and then resumed normal ion thrusting on Monday night, September 15th.

Artist concept of NASA's Dawn spacecraft orbiting Ceres during an upcoming flyby. (NASA/JPL-Caltech/UCLA)

Artist concept of NASA’s Dawn spacecraft orbiting Ceres during an upcoming flyby. (NASA/JPL-Caltech/UCLA)

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Clarksville Downtown Market voted #1 Farmers Market in Tennessee; 19th in the Nation

 

Clarksville Downtown MarketClarksville, TN – American Farmland Trust’s summer celebration of farmers markets has ended and the Clarksville Downtown Market has been recognized as the top farmers market in Tennessee. The Clarksville Downtown Market also came in 19th in the Top 100 Most Celebrated Farmers Markets in America for 2014.

The I Love My Farmers Market Celebration encouraged consumers to pledge to spend $10.00 at their local farmers market. Each pledge honored our nation’s hardworking farmers, our community, and the Clarksville Downtown Market. This year’s celebration helped put more than $400,000 directly into the pockets of family farmers.

Clarksville Downtown Market

Clarksville Downtown Market

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NASA reports landing site for Rosetta Spacecraft’s Philae lander on comet set

 

Written by DC Agle and Dwayne Brown
NASA

NASA - National Aeronautics and Space AdministrationPasadena, CA – The European Space Agency’s Rosetta’s lander, Philae, will target Site J, an intriguing region on comet 67P/Churyumov-Gerasimenko that offers unique scientific potential, with hints of activity nearby, and minimum risk to the lander compared to the other candidate sites.

The 220-pound (100-kilogram) lander is scheduled to reach the surface on November 11th, where it will perform in-depth measurements to characterize the nucleus. Rosetta is an international mission spearheaded by the European Space Agency with support and instruments provided by NASA.

Image depicts the primary landing site on comet 67P/Churyumov-Gerasimenko chosen for the European Space Agency's Rosetta mission. (ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

Image depicts the primary landing site on comet 67P/Churyumov-Gerasimenko chosen for the European Space Agency’s Rosetta mission. (ESA/Rosetta/MPS for OSIRIS Team MPS/UPD/LAM/IAA/SSO/INTA/UPM/DASP/IDA)

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U.S. Senate Passes Legislation Co-sponsored by Lamar Alexander to Improve Emergency Medical Care for More than 600,000 Tennessee Children Every Year

 

U.S. SenateWashington, D.C. – U.S. Senator Lamar Alexander (R-Tennessee) announced that the Senate unanimously passed the Emergency Medical Services for Children Reauthorization Act, legislation he cosponsored to improve emergency medical services for more than 600,000 Tennessee children every year.

This year, the National Pediatric Readiness Assessment ranked Tennessee highest among all states in the ability of its hospital emergency departments to take care of children with emergency conditions.

Lamar Alexander

Lamar Alexander

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NASA’s Mars Curiosity Rover reaches Mount Sharp inside Gale Crater

 

Written by Guy Webster / DC Agle
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Mars Curiosity rover has reached the Red Planet’s Mount Sharp, a Mount-Rainier-size mountain at the center of the vast Gale Crater and the rover mission’s long-term prime destination.

“Curiosity now will begin a new chapter from an already outstanding introduction to the world,” said Jim Green, director of NASA’s Planetary Science Division at NASA Headquarters in Washington. “After a historic and innovative landing along with its successful science discoveries, the scientific sequel is upon us.”

This image from NASA's Mars Curiosity rover shows the "Amargosa Valley," on the slopes leading up to Mount Sharp on Mars. (NASA/JPL-Caltech/MSSS)

This image from NASA’s Mars Curiosity rover shows the “Amargosa Valley,” on the slopes leading up to Mount Sharp on Mars. (NASA/JPL-Caltech/MSSS)

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NASA reports International Space Station experiments with Fire in Zero Gravity

 

Written by Tony Phillips
Science at NASA

NASA - National Aeronautics and Space AdministrationWashington, D.C. – Fire is inanimate, yet anyone staring into a flame could be excused for thinking otherwise: Fire dances and swirls. It reproduces, consumes matter, and produces waste. It adapts to its environment. It needs oxygen to survive.

In short, fire is uncannily lifelike.

Nowhere is this more true than onboard a spaceship.

Unlike flames on Earth, which have a tear-drop shape caused by buoyant air rising in a gravitational field, flames in space curl themselves into tiny balls.

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NASA study looks into reduction of Bright Clumps in Saturn’s Ring

 

Written by Preston Dyches
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Compared to the age of the solar system — about four-and-a-half billion years — a couple of decades are next to nothing. Some planetary locales change little over many millions of years, so for scientists who study the planets, any object that evolves on such a short interval makes for a tempting target for study. And so it is with the ever-changing rings of Saturn.

Case in point: Saturn’s narrow, chaotic and clumpy F ring. A recent NASA-funded study compared the F ring’s appearance in six years of observations by the Cassini mission to its appearance during the Saturn flybys of NASA’s Voyager mission, 30 years earlier.

Cassini spied just as many regular, faint clumps in Saturn's narrow F ring, like those pictured here, as Voyager did, but it saw hardly any of the long, bright clumps that were common in Voyager images. (NASA/JPL-Caltech/SSI)

Cassini spied just as many regular, faint clumps in Saturn’s narrow F ring, like those pictured here, as Voyager did, but it saw hardly any of the long, bright clumps that were common in Voyager images. (NASA/JPL-Caltech/SSI)

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