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Topic: X-Ray

NASA Telescopes used to study unusual Flash of Light nicknamed “The Cow”

 

Written by Jeanette Kazmierczak
NASA Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – A brief and unusual flash spotted in the night sky on June 16th, 2018, puzzled astronomers and astrophysicists across the globe. The event – called AT2018cow and nicknamed “the Cow” after the coincidental final letters in its official name – is unlike any celestial outburst ever seen before, prompting multiple theories about its source.

Over three days, the Cow produced a sudden explosion of light at least 10 times brighter than a typical supernova, and then it faded over the next few months.

AT2018cow erupted in or near a galaxy known as CGCG 137-068, which is located about 200 million light-years away in the constellation Hercules. This zoomed-in image shows the location of the "Cow" in the galaxy. (Sloan Digital Sky Survey)

AT2018cow erupted in or near a galaxy known as CGCG 137-068, which is located about 200 million light-years away in the constellation Hercules. This zoomed-in image shows the location of the “Cow” in the galaxy. (Sloan Digital Sky Survey)

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NASA’s Chandra X-ray Observatory study shows Black Holes stop Star Formation in “Red Nugget” Galaxies

 

NASA Marshall Space Flight Center

NASA - National Aeronautics and Space AdministrationHuntsville, AL – About a decade ago, astronomers discovered a population of small, but massive galaxies called “red nuggets.” A new study using NASA’s Chandra X-ray Observatory indicates that black holes have squelched star formation in these galaxies and may have used some of the untapped stellar fuel to grow to unusually massive proportions.

Red nuggets were first discovered by the Hubble Space Telescope at great distances from Earth, corresponding to times only about three or four billion years after the Big Bang. They are relics of the first massive galaxies that formed within only one billion years after the Big Bang.

Artist's illustration and X-ray image of "red nugget" galaxy Mrk 1216. (X-ray: NASA/CXC/MTA-Eötvös University/N. Werner et al., Illustration: NASA/CXC/M. Weiss)

Artist’s illustration and X-ray image of “red nugget” galaxy Mrk 1216. (X-ray: NASA/CXC/MTA-Eötvös University/N. Werner et al., Illustration: NASA/CXC/M. Weiss)

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Austin Peay State University hosts 8th Annual Young Women’s Leadership Symposium, March 23rd

 

Austin Peay State University - APSUClarksville, TN – Have you ever heard of Rosalind Franklin? In the early 1950s, the English chemist, working at King’s College London, produced an X-ray image that led scientists to finally identify the structure of DNA.

Nearly 10 years later, the famed Cambridge scientists James Watson and Francis Crick—not Franklin—were awarded the Nobel Prize for determining that structure.

8th Annual Young Women’s Leadership Symposium to be held at APSU, March 23rd. «Read the rest of this article»

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NASA’s Mars InSight Lander will study the Deep Interior of Mars

 

NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Mars InSight lander team is preparing to ship the spacecraft from Lockheed Martin Space in Denver, where it was built and tested, to Vandenberg Air Force Base in California, where it will become the first interplanetary mission to launch from the West Coast. The project is led by NASA’s Jet Propulsion Laboratory in Pasadena, California.

NASA has a long and successful track record at Mars. Since 1965, it has flown by, orbited, landed and roved across the surface of the Red Planet. What can InSight — planned for launch in May — do that hasn’t been done before?

An artist's rendition of the InSight lander operating on the surface of Mars. (NASA/JPL-Caltech)

An artist’s rendition of the InSight lander operating on the surface of Mars. (NASA/JPL-Caltech)

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NASA continues research into discovering nature of Dark Matter

 

Written by Molly Porter
NASA Marshall Space Flight Center

NASA - National Aeronautics and Space AdministrationHuntsville, AL – An innovative interpretation of X-ray data from a cluster of galaxies could help scientists fulfill a quest they have been on for decades: determining the nature of dark matter.

The finding involves a new explanation for a set of results made with NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and Hitomi, a Japanese-led X-ray telescope. If confirmed with future observations, this may represent a major step forward in understanding the nature of the mysterious, invisible substance that makes up about 85% of matter in the universe.

Composite image of the Perseus galaxy cluster using data from NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and Hitomi, a Japanese-led X-ray telescope. (X-ray: NASA/CXO/Fabian et al.; Radio: Gendron-Marsolais et al.; NRAO/AUI/NSF Optical: NASA, SDSS)

Composite image of the Perseus galaxy cluster using data from NASA’s Chandra X-ray Observatory, ESA’s XMM-Newton and Hitomi, a Japanese-led X-ray telescope. (X-ray: NASA/CXO/Fabian et al.; Radio: Gendron-Marsolais et al.; NRAO/AUI/NSF Optical: NASA, SDSS)

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NASA’s NuSTAR Space Telescope examines Black Hole Plasma Jet

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – Black holes are famous for being ravenous eaters, but they do not eat everything that falls toward them. A small portion of material gets shot back out in powerful jets of hot gas, called plasma, that can wreak havoc on their surroundings.

Along the way, this plasma somehow gets energized enough to strongly radiate light, forming two bright columns along the black hole’s axis of rotation. Scientists have long debated where and how this happens in the jet.

Astronomers have new clues to this mystery.

This artist's concept shows a black hole with an accretion disk -- a flat structure of material orbiting the black hole - and a jet of hot gas, called plasma. (NASA/JPL-Caltech)

This artist’s concept shows a black hole with an accretion disk — a flat structure of material orbiting the black hole – and a jet of hot gas, called plasma. (NASA/JPL-Caltech)

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Blanchfield Army Community Hospital recommends Annual Mammograms for Women over 40

 

Written by Maria Christina Yager
Blanchfield Army Community Hospital

Blanchfield Army Hospital - BACH - Fort Campbell KYFort Campbell, KY – Medical officials recommend women age 40 and older have a mammogram annually to detect for signs of breast cancer.

“Mammography has helped reduce breast cancer mortality in the U.S. by nearly 40 percent since 1990. Annual mammograms can help detect cancer in its earliest stages when it’s most treatable,” said Maj. Sara Michael, a diagnostic radiologist and Chief of Mammography and Ultrasound at Blanchfield Army Community Hospital.

Blanchfield Army Community Hospital Chief of Mammography and Ultrasound, Maj. Sara Michael, a diagnostic radiologist, reviews a mammogram Oct. 11 to look for any abnormalities in the breast tissue that could require further testing. Women over age 40 should have a mammogram annually to detect for signs of breast cancer. Women over age 40 who receive care at BACH can call the mammography clinic directly to schedule their annual mammogram. (Maria Yager)

Blanchfield Army Community Hospital Chief of Mammography and Ultrasound, Maj. Sara Michael, a diagnostic radiologist, reviews a mammogram Oct. 11 to look for any abnormalities in the breast tissue that could require further testing. Women over age 40 should have a mammogram annually to detect for signs of breast cancer. Women over age 40 who receive care at BACH can call the mammography clinic directly to schedule their annual mammogram. (Maria Yager)

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Clarksville Police report Suspicious Package found

 

Clarksville Police Department - CPDClarksville, TN – On Monday, September 18th, 2017 around 6:28pm, Clarksville Police officers responded to a suspicious package at the post office which is listed as 2011 Fort Campbell Boulevard but has also has an entrance on Ringgold Road.

The package was black and had a symbol resembling a missile. There were multiple residences, part of an apartment complex, and a Burger King evacuated.

Contents of the suspicious package found Monday night at the post office located on Fort Campbell Boulevard.

Contents of the suspicious package found Monday night at the post office located on Fort Campbell Boulevard.

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NASA picks Six Explorers Program proposals to study our Solar System

 

Written by Elizabeth Landau
NASA’s Jet Propulsion Laboratory

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA has selected six astrophysics Explorers Program proposals for concept studies. The proposed missions would study gamma-ray and X-ray emissions from clusters of galaxies and neutron star systems, as well as infrared emissions from galaxies in the early universe and atmospheres of exoplanets, which are planets outside of our solar system.

Three of these proposed missions, called FINESSE, SPHEREx and CASE, are managed by NASA’s Jet Propulsion Laboratory in Pasadena, California. FINESSE and CASE additionally have their principal investigator based at JPL.

NASA is exploring our solar system and beyond to understand the workings of the universe, searching for water and life among the stars. (NASA)

NASA is exploring our solar system and beyond to understand the workings of the universe, searching for water and life among the stars. (NASA)

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NASA reports LIGO detects Third Gravitational Wave

 

Written by Molly Porter
NASA’s Marshall Space Flight Center

NASA - National Aeronautics and Space AdministrationHuntsville, AL – About 3 billion years ago, a pair of orbiting black holes collided to form a single object with 49 times the mass of our sun. The event unleashed powerful gravitational waves—ripples in the very fabric of space and time—that reached Earth seconds before 4:12am CST on January 4th, 2017.

That’s when they were detected by the ground-based twin Laser Interferometer Gravitational-Wave Observatory (LIGO) facilities in Hanford, Washington, and Livingston, Louisiana.

The event, known as GW170104, after the date, is the third detection of gravitational waves by LIGO. Located at a distance of about 3 billion light-years, the coalesced black hole is twice as far away as both of the two mergers previously detected.

This artist illustration shows two black holes (black spheres) of nearly equal mass as they spiral together and merge. (NASA)

This artist illustration shows two black holes (black spheres) of nearly equal mass as they spiral together and merge. (NASA)

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