Clarksville, TN Online: News, Opinion, Arts & Entertainment.


How NASA’s Mars Helicopter came into being

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – The NASA Mars Helicopter is riding to the Red Planet this summer with NASA’s Mars Perseverance rover. The helicopter’s chief engineer, Bob Balaram, shares the saga of how it came into being.

Even before this interviewer can finish the question, “Did anyone ever tell you this was a crazy idea?” Bob Balaram jumps in: “Everyone. All the time.”

This “crazy idea” is the Mars Helicopter, currently at Kennedy Space Center waiting to hitch a ride to the Red Planet on the Mars Perseverance rover this summer.

Mars Helicopter's chief engineer Bob Balaram and the Mars Helicopter on a test stand. The technology demonstration will ride aboard NASA's Perseverance rover to the Red Planet. (NASA/JPL-Caltech)

Mars Helicopter’s chief engineer Bob Balaram and the Mars Helicopter on a test stand. The technology demonstration will ride aboard NASA’s Perseverance rover to the Red Planet. (NASA/JPL-Caltech)

«Read the rest of this article»


NASA’s Hubble Space Telescope discovers evidence of Elusive Black Hole

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – Astronomers have found the best evidence for the perpetrator of a cosmic homicide: a black hole of an elusive class known as “intermediate-mass,” which betrayed its existence by tearing apart a wayward star that passed too close.

Weighing in at about 50,000 times the mass of our Sun, the black hole is smaller than the supermassive black holes (at millions or billions of solar masses) that lie at the cores of large galaxies, but larger than stellar-mass black holes formed by the collapse of a massive star.

This illustration depicts a cosmic homicide in action. A wayward star is being shredded by the intense gravitational pull of a black hole that contains tens of thousands of solar masses. The stellar remains are forming an accretion disk around the black hole. Flares of X-ray light from the super-heated gas disk alerted astronomers to the black hole's location; otherwise it lurked unknown in the dark. (NASA, ESA and D. Player (STScI))

This illustration depicts a cosmic homicide in action. A wayward star is being shredded by the intense gravitational pull of a black hole that contains tens of thousands of solar masses. The stellar remains are forming an accretion disk around the black hole. Flares of X-ray light from the super-heated gas disk alerted astronomers to the black hole’s location; otherwise it lurked unknown in the dark. (NASA, ESA and D. Player (STScI))

«Read the rest of this article»


NASA SunRISE mission to use Six Spacecraft to study Giant Solar Particle Storms

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA has selected a new mission to study how the Sun generates and releases giant space weather storms – known as solar particle storms – into planetary space.

Not only will such information improve understanding of how our solar system works, but it ultimately can help protect astronauts traveling to the Moon and Mars by providing better information on how the Sun’s radiation affects the space environment they must travel through.

A new NASA mission called SunRISE will study what drives solar particle storms - giant surges of solar particles that erupt off of the Sun - as depicted in this illustration. Understanding how such storms affect interplanetary space can help protect spacecraft and astronauts. (NASA)

A new NASA mission called SunRISE will study what drives solar particle storms – giant surges of solar particles that erupt off of the Sun – as depicted in this illustration. Understanding how such storms affect interplanetary space can help protect spacecraft and astronauts. (NASA)

«Read the rest of this article»




NASA captures Nighttime Images showing Changes in China

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA says that beyond their beauty, images of Earth at night have a practical use. The nighttime lights of cities, highways, and other infrastructure are fingerprints of how civilization has spread across the planet. For some researchers, those lights not only speak to where we live, but how.

A team of scientists from NASA’s Goddard Space Flight Center (GSFC) and Universities Space Research Association (USRA) has detected signs of the recent shutdown of business and transportation around Hubei province in central China.

Image of Wuhan China on January 19th, 2020. (NASA)

Image of Wuhan China on January 19th, 2020. (NASA)

«Read the rest of this article»


NASA’s view of Mobile Airspace expands with Advanced Air Mobility

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA’s aeronautical innovators are embracing a more inclusive vision for the future of air travel in at least one major research area, and the terminology they will use from now on will reflect that more comprehensive view of what’s on the horizon.

Bottom line: The thinking on Urban Air Mobility (UAM) has advanced so much that it was decided Advanced Air Mobility (AAM) was a better term to use.

Advanced Air Mobility, with its many vehicle concepts and potential uses in both local and intraregional applications, is shown in this illustration. (NASA)

Advanced Air Mobility, with its many vehicle concepts and potential uses in both local and intraregional applications, is shown in this illustration. (NASA)

«Read the rest of this article»


NASA selects SpaceX for Gateway Logistics Services Artemis Contract

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – NASA has selected SpaceX of Hawthorne, California, as the first U.S. commercial provider under the Gateway Logistics Services contract to deliver cargo, experiments and other supplies to the agency’s Gateway in lunar orbit. The award is a significant step forward for NASA’s Artemis program that will land the first woman and next man on the Moon by 2024 and build a sustainable human lunar presence.

At the Moon, NASA and its partners will gain the experience necessary to mount a historic human mission to Mars.

Illustration of the SpaceX Dragon XL as it is deployed from the Falcon Heavy's second stage in high Earth orbit on its way to the Gateway in lunar orbit. (SpaceX)

Illustration of the SpaceX Dragon XL as it is deployed from the Falcon Heavy’s second stage in high Earth orbit on its way to the Gateway in lunar orbit. (SpaceX)

«Read the rest of this article»


NASA Scientists take new look at Voyager 2 Data, Find new Discovery about Uranus

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – Eight and a half years into its grand tour of the solar system, NASA’s Voyager 2 spacecraft was ready for another encounter. It was January 24th, 1986, and soon it would meet the mysterious seventh planet, icy-cold Uranus.

Over the next few hours, Voyager 2 flew within 50,600 miles (81,433 kilometers) of Uranus’ cloud tops, collecting data that revealed two new rings, 11 new moons and temperatures below minus 353 degrees Fahrenheit (minus 214 degrees Celsius). The dataset is still the only up-close measurements we have ever made of the planet.

Voyager 2 took this image as it approached the planet Uranus on Jan. 14, 1986. The planet's hazy bluish color is due to the methane in its atmosphere, which absorbs red wavelengths of light. (NASA/JPL-Caltech)

Voyager 2 took this image as it approached the planet Uranus on Jan. 14, 1986. The planet’s hazy bluish color is due to the methane in its atmosphere, which absorbs red wavelengths of light. (NASA/JPL-Caltech)

«Read the rest of this article»




NASA study shows Denman Glacier vulnerable to Seawater Intrusion

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – According to a new study by scientists at NASA’s Jet Propulsion Laboratory and the University of California, Irvine, the Denman Glacier in East Antarctica retreated 3.4 miles (5.4 kilometers) from 1996 to 2018. Their analysis of Denman – a single glacier that holds as much ice as half of West Antarctica – also shows that the shape of the ground beneath the ice sheet makes it especially susceptible to climate-driven retreat.

Until recently, researchers believed East Antarctica was more stable than West Antarctica because it wasn’t losing as much ice compared to the glacial melt observed in the western part of the continent.

This photograph shows ripples in the surface of Denman Glacier in East Antarctica that throw shadows against the ice. The glacier is melting at a faster rate now than it was from 2003 to 2008. (NASA)

This photograph shows ripples in the surface of Denman Glacier in East Antarctica that throw shadows against the ice. The glacier is melting at a faster rate now than it was from 2003 to 2008. (NASA)

«Read the rest of this article»


NASA Lunar Lander Thrusters hold up to Over 60 Hot-Fire Tests

 

NASA - National Aeronautics and Space AdministrationHuntsville, AL – Future NASA Artemis lunar landers could use next-generation thrusters, the small rocket engines used to make alterations in a spacecraft’s flight path or altitude, to enter lunar orbit and descend to the surface. Before the engines make the trip to the Moon, helping deliver new science instruments and technology demonstrations, they’re being tested here on Earth.

NASA and Frontier Aerospace of Simi Valley, California, performed roughly 60 hot-fire tests on two thruster prototypes over the course of 10 days.

NASA and Frontier Aerospace are developing next-generation thrusters for use on Astrobotic's Peregrine lunar lander. In March 2020, thruster prototypes performed over 60 hot-fire tests in a vacuum chamber. (Frontier Aerospace)

NASA and Frontier Aerospace are developing next-generation thrusters for use on Astrobotic’s Peregrine lunar lander. In March 2020, thruster prototypes performed over 60 hot-fire tests in a vacuum chamber. (Frontier Aerospace)

«Read the rest of this article»


Coronavirus Phishing Explodes as United States Reels From Pandemic

 

KnowBe4Tampa Bay, FLKnowBe4, the provider of the world’s largest security awareness training and simulated phishing platform, announces its researchers are seeing an influx of coronavirus (COVID-19) related phishing scams.

Scam Alert «Read the rest of this article»





  • Visit Us On FacebookVisit Us On TwitterVisit Us On PinterestVisit Us On YoutubeCheck Our FeedVisit Us On Instagram
  • Personal Controls

    Archives

      April 2020
      S M T W T F S
      « Mar    
       1234
      567891011
      12131415161718
      19202122232425
      2627282930