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


Topic: NASA’s Marshall Space Flight Center

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»

Sections: Technology | No Comments
 

NASA releases First Names for Features on Asteroid Bennu

 

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – NASA says Asteroid Bennu’s most prominent boulder, a rock chunk jutting out 71 ft (21.7 m) from the asteroid’s southern hemisphere, finally has a name. The boulder – which is so large that it was initially detected from Earth – is officially designated Benben Saxum after the primordial hill that first arose from the dark waters in an ancient Egyptian creation myth.

Benben Saxum and 11 other features on the asteroid are the first to receive official Bennu feature names approved by the International Astronomical Union (IAU), the internationally recognized authority for naming celestial bodies and their surface features.

This flat projection mosaic of asteroid Bennu shows the locations of the first 12 surface features to receive official names from the International Astronomical Union. The accepted names were proposed by NASA’s OSIRIS-REx team members, who have been mapping the asteroid in detail over the last year. Bennu’s surface features are named after birds and bird-like creatures in mythology, and the places associated with them. (NASA/Goddard/University of Arizona)

This flat projection mosaic of asteroid Bennu shows the locations of the first 12 surface features to receive official names from the International Astronomical Union. The accepted names were proposed by NASA’s OSIRIS-REx team members, who have been mapping the asteroid in detail over the last year. Bennu’s surface features are named after birds and bird-like creatures in mythology, and the places associated with them. (NASA/Goddard/University of Arizona)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s OSIRIS-REx spacecraft searches Asteroid Bennu’s surface for safe areas to land

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – This summer, the OSIRIS-REx spacecraft will undertake NASA’s first-ever attempt to touch the surface of an asteroid, collect a sample of it, and safely back away. But since arriving at asteroid Bennu over a year ago, the mission team has been tackling an unexpected challenge: how to accomplish this feat at an asteroid whose surface is blanketed in building-sized boulders.

Using these hazardous boulders as signposts, the mission team developed a new precision navigation method to overcome the challenge.

During the sample collection event, Natural Feature Tracking (NFT) will guide NASA’s OSIRIS-REx spacecraft to asteroid Bennu’s surface. The spacecraft takes real-time images of the asteroid’s surface features as it descends, and then compares these images with an onboard image catalog. The spacecraft then uses these geographical markers to orient itself and accurately target the touchdown site. (NASA/Goddard/University of Arizona)

During the sample collection event, Natural Feature Tracking (NFT) will guide NASA’s OSIRIS-REx spacecraft to asteroid Bennu’s surface. The spacecraft takes real-time images of the asteroid’s surface features as it descends, and then compares these images with an onboard image catalog. The spacecraft then uses these geographical markers to orient itself and accurately target the touchdown site. (NASA/Goddard/University of Arizona)

«Read the rest of this article»

Sections: Technology | No Comments
 


Student built instrument onboard NASA’s OSIRIS-REx Spacecraft detects new Black Hole

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – University students and researchers working on a NASA mission orbiting a near-Earth asteroid have made an unexpected detection of a phenomenon 30 thousand light years away. Last fall, the student-built Regolith X-Ray Imaging Spectrometer (REXIS) onboard NASA’s OSIRIS-REx spacecraft detected a newly flaring black hole in the constellation Columba while making observations off the limb of asteroid Bennu.

REXIS, a shoebox-sized student instrument, was designed to measure the X-rays that Bennu emits in response to incoming solar radiation. X-rays are a form of electromagnetic radiation, like visible light, but with much higher energy.

This image shows the X-ray outburst from the black hole MAXI J0637-043, detected by the REXIS instrument on NASA's OSIRIS-REx spacecraft. The image was constructed using data collected by the X-ray spectrometer while REXIS was making observations of the space around asteroid Bennu on Nov. 11, 2019. (NASA/Goddard/University of Arizona/MIT/Harvard)

This image shows the X-ray outburst from the black hole MAXI J0637-043, detected by the REXIS instrument on NASA’s OSIRIS-REx spacecraft. The image was constructed using data collected by the X-ray spectrometer while REXIS was making observations of the space around asteroid Bennu on Nov. 11, 2019. (NASA/Goddard/University of Arizona/MIT/Harvard)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA announces Biggest Black Hole Explosion on record discovered

 

NASA - National Aeronautics and Space AdministrationHuntsville, AL – The biggest explosion seen in the universe has been found. This record-breaking, gargantuan eruption came from a black hole in a distant galaxy cluster hundreds of millions of light years away.

“In some ways, this blast is similar to how the eruption of Mt. St. Helens in 1980 ripped off the top of the mountain,” said Simona Giacintucci of the Naval Research Laboratory in Washington, D.C., and lead author of the study. “A key difference is that you could fit fifteen Milky Way galaxies in a row into the crater this eruption punched into the cluster’s hot gas.”

Evidence for the biggest explosion seen in the Universe comes from a combination of X-ray data from Chandra and XMM-Newton, and the Murchison Widefield Array and Giant Metrewave Telescope, as shown here. The eruption is generated by a black hole located in the cluster's central galaxy, which has blasted out jets and carved a large cavity in the surrounding hot gas. (X-ray: Chandra: NASA/CXC/NRL/S. Giacintucci, et al., XMM-Newton: ESA/XMM-Newton; Radio: NCRA/TIFR/GMRT; Infrared: 2MASS/UMass/IPAC-Caltech/NASA/NSF)

Evidence for the biggest explosion seen in the Universe comes from a combination of X-ray data from Chandra and XMM-Newton, and the Murchison Widefield Array and Giant Metrewave Telescope, as shown here. The eruption is generated by a black hole located in the cluster’s central galaxy, which has blasted out jets and carved a large cavity in the surrounding hot gas. (X-ray: Chandra: NASA/CXC/NRL/S. Giacintucci, et al., XMM-Newton: ESA/XMM-Newton; Radio: NCRA/TIFR/GMRT; Infrared: 2MASS/UMass/IPAC-Caltech/NASA/NSF)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA CubeSats will be a big part of Humans returning to the Moon

 

NASA - National Aeronautics and Space AdministrationWashington, D.C. – They might be small, but they’re also mighty. Very small and innovative spacecraft called CubeSats are poised to play a role in NASA’s Artemis program, which will return humans to the Moon by 2024.

Advancements in consumer electronics and miniaturized sensors enable small spacecraft to be powerful tools for space exploration.

“A number of things have coalesced to create what is termed the SmallSat and CubeSat revolution,” says Christopher Baker, Small Spacecraft Technology program executive within NASA’s Space Technology Mission Directorate.

Illustration of the Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment (CAPSTONE). (NASA)

Illustration of the Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment (CAPSTONE). (NASA)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s InSight Lander provides deeper understand of Mars in it’s first year

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – A new understanding of Mars is beginning to emerge, thanks to the first year of NASA’s InSight lander mission. Findings described in a set of six papers published today reveal a planet alive with quakes, dust devils and strange magnetic pulses.

Five of the papers were published in Nature. An additional paper in Nature Geoscience details the InSight spacecraft’s landing site, a shallow crater nicknamed “Homestead hollow” in a region called Elysium Planitia.

In this artist's concept of NASA's InSight lander on Mars, layers of the planet's subsurface can be seen below and dust devils can be seen in the background. (IPGP/Nicolas Sarter)

In this artist’s concept of NASA’s InSight lander on Mars, layers of the planet’s subsurface can be seen below and dust devils can be seen in the background. (IPGP/Nicolas Sarter)

«Read the rest of this article»

Sections: Technology | No Comments
 


NASA’s Chandra X-ray Observatory data reveals Cosmic Jekyll and Hyde

 

NASA - National Aeronautics and Space AdministrationHuntsville, AL – A double star system has been flipping between two alter egos, according to observations with NASA’s Chandra X-ray Observatory and the National Science Foundation’s Karl F. Jansky Very Large Array (VLA).

Using nearly a decade and a half worth of Chandra data, researchers noticed that a stellar duo behaved like one type of object before switching its identity, and then returning to its original state after a few years. This is a rare example of a star system changing its behavior in this way.

Terzan 5 (right), low, medium and high-energy X-rays detected by Chandra are colored red, green and blue respectively. On the left, an image from the Hubble Space Telescope shows the same field of view in optical light. Terzan 5 CX1 is labeled as CX1 in the Chandra image. (NASA)

Terzan 5 (right), low, medium and high-energy X-rays detected by Chandra are colored red, green and blue respectively. On the left, an image from the Hubble Space Telescope shows the same field of view in optical light. Terzan 5 CX1 is labeled as CX1 in the Chandra image. (NASA)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA maneuvers Mars InSight Landers’ robotic arm to press down on the “Mole”

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – After nearly a year of trying to dig into the Martian surface, the heat probe belonging to NASA’s InSight lander is about to get a push. The mission team plans to command the scoop on InSight’s robotic arm to press down on the “mole,” the mini pile driver designed to hammer itself as much as 16 feet (5 meters) down.

They hope that pushing down on the mole’s top, also called the back cap, will keep it from backing out of its hole on Mars, as it did twice in recent months after nearly burying itself.

This test using an engineering model of the InSight lander here on Earth shows how the spacecraft on Mars will use its robotic arm to press on a digging device, called the "mole." (NASA/JPL-Caltech)

This test using an engineering model of the InSight lander here on Earth shows how the spacecraft on Mars will use its robotic arm to press on a digging device, called the “mole.” (NASA/JPL-Caltech)

«Read the rest of this article»

Sections: Technology | No Comments
 

NASA’s Juno spacecraft data reveals amount of Water in Jupiter’s Atmosphere

 

NASA - National Aeronautics and Space AdministrationPasadena, CA – NASA’s Juno mission has provided its first science results on the amount of water in Jupiter’s atmosphere. Published recently in the journal Nature Astronomy, the Juno results estimate that at the equator, water makes up about 0.25% of the molecules in Jupiter’s atmosphere – almost three times that of the Sun.

These are also the first findings on the gas giant’s abundance of water since the agency’s 1995 Galileo mission suggested Jupiter might be extremely dry compared to the Sun (the comparison is based not on liquid water but on the presence of its components, oxygen and hydrogen, present in the Sun).

The JunoCam imager aboard NASA's Juno spacecraft captured this image of Jupiter's southern equatorial region on Sept. 1, 2017. The image is oriented so Jupiter's poles (not visible) run left-to-right of frame. (NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill)

The JunoCam imager aboard NASA’s Juno spacecraft captured this image of Jupiter’s southern equatorial region on Sept. 1, 2017. The image is oriented so Jupiter’s poles (not visible) run left-to-right of frame. (NASA/JPL-Caltech/SwRI/MSSS/Kevin M. Gill)

«Read the rest of this article»

Sections: Technology | No Comments
 



  • 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