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Recent Articles
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Topic: Space
“This is one of Webb’s biggest accomplishments in 2020,” said Alphonso Stewart, Webb deployment systems lead for NASA’s Goddard Space Flight Center in Greenbelt, Maryland. ![]() NASA’s James Webb Space Telescope’s final tests are underway with the successful completion of its last sunshield deployment test, which occurred at Northrop Grumman in Redondo Beach, California. (NASA/Chris Gunn) «Read the rest of this article» Sections: Technology | No Comments
NASA completes Environmental Testing of James Webb Space Telescope
Webb’s recent tests have validated that the fully assembled observatory will endure the deafening noise, and the jarring shakes, rattles and vibrations that the observatory will experience during liftoff. Known as “acoustic” and “sine-vibration” testing, NASA has worked carefully with its international partners to match Webb’s testing environment precisely to what Webb will experience both on launch day, and when operating in orbit. ![]() For the first time ever, testing teams at Northrop Grumman in Redondo Beach, California carefully lifted the fully assembled James Webb Space Telescope in order to prepare it for transport to nearby acoustic and sine-vibration testing facilities. (NASA/Chris Gunn) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Hubble Space Telescope used to discover missing Ingredient in Dark Matter Theories
They have uncovered a discrepancy between the theoretical models of how dark matter should be distributed in galaxy clusters, and observations of dark matter’s grip on clusters. Dark matter does not emit, absorb, or reflect light. Its presence is only known through its gravitational pull on visible matter in space. Therefore, dark matter remains as elusive as Alice in Wonderland’s Cheshire Cat – where you only see its grin (in the form of gravity) but not the animal itself. ![]() This Hubble Space Telescope image shows the massive galaxy cluster MACS J1206. Embedded within the cluster are the distorted images of distant background galaxies, seen as arcs and smeared features. These distortions are caused by the amount of dark matter in the cluster, whose gravity bends and magnifies the light from faraway galaxies. This effect, called gravitational lensing, allows astronomers to study remote galaxies that would otherwise be too faint to see. (NASA, ESA, P. Natarajan (Yale University), G. Caminha (University of Groningen), M. Meneghetti (INAF-Observatory of Astrophysics and Space Science of Bologna), the CLASH-VLT/Zooming teams; acknowledgment: NASA, ESA, M. Postman (STScI), the CLASH team) «Read the rest of this article» Sections: News | No Comments
NASA discovers changing dent in Earth’s Magnetic Field
Earth’s magnetic field acts like a protective shield around the planet, repelling and trapping charged particles from the Sun. But over South America and the southern Atlantic Ocean, an unusually weak spot in the field – called the South Atlantic Anomaly, or SAA – allows these particles to dip closer to the surface than normal. ![]() This stereoscopic visualization shows a simple model of the Earth’s magnetic field. The magnetic field partially shields the Earth from harmful charged particles emanating from the Sun. (NASA’s Goddard Space Flight Center) «Read the rest of this article» Sections: Technology | No Comments
NASA reports Comet NEOWISE passes by the Sun, Providing a Treat for Observers
The comet cruised just inside Mercury’s orbit on July 3rd. This very close passage by the Sun is cooking the comet’s outermost layers, causing gas and dust to erupt off the icy surface and creating a large tail of debris. And yet the comet has managed to survive this intense roasting. ![]() Comet C/2020 F3 NEOWISE appears as a string of fuzzy red dots in this composite of several heat-sensitive infrared images taken by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer (NEOWISE) mission on March 27, 2020. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA works on plan for Suborbital Space Transportation System for Personnel
In addition, the Flight Opportunities program recently released a call that allows those non-NASA researchers to propose accompanying their payloads in suborbital space. «Read the rest of this article» Sections: Technology | No Comments
APSU sent hops to near space, now it’s in the Stratobeer at Strawberry Alley Ale Works
The balloon carried an important student experiment, but the payload also included two special guests: two containers that contained Cascade hops. ![]() Strawberry Alley Ale Works’ brew Stratobeer is made from hops Austin Peay State University launched into the near space. (APSU) «Read the rest of this article» Sections: Education | No Comments
NASA Scientists take new look at Voyager 2 Data, Find new Discovery about 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) «Read the rest of this article» Sections: Technology | No Comments
NASA uses SHIIVER tank to test keeping liquid fuel cool
But as the extreme environment of space warms a spacecraft, the fuels begin to evaporate or “boiloff.” “As energy from the Sun, Earth, and even the Moon enters the cryogenic propellant tanks, the liquid has to absorb that energy, which causes it to boiloff,” explains Wesley Johnson, cryogenic fluid management technical lead at NASA’s Glenn Research Center in Cleveland. ![]() SHIIVER is 13-foot diameter test tank built by NASA to evaluate technologies aimed at reducing the evaporation or “boiloff” losses in large cryogenic storage tanks for human exploration missions. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA explains how Solar Orbiter withstands Heat from the Sun
Seeking a view of the Sun’s north and south poles, Solar Orbiter will journey out of the ecliptic plane — the belt of space, roughly in line with the Sun’s equator, through which the planets orbit. Slinging repeatedly past Venus in order to draw near the Sun and climb higher above the ecliptic, the spacecraft bounds from the Sun and back toward the orbit of Earth throughout its mission. ![]() An image of Solar Orbiter peering at the Sun through peepholes in its heat shield. (ESA/ATG medialab) «Read the rest of this article» Sections: Technology | No Comments
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