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Topic: ElectronsPasadena, CA – NASA says a New research from scientists at NASA’s Jet Propulsion Laboratory in Southern California details for the first time what the glow would look like, and what it could reveal about the composition of ice on Europa’s surface. ![]() This illustration of Jupiter’s moon Europa shows how the icy surface may glow on its nightside, the side facing away from the Sun. Variations in the glow and the color of the glow itself could reveal information about the composition of ice on Europa’s surface. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Politics | No Comments
NASA says Moon has Rust despite having no Oxygen, Liquid Water
A new paper in Science Advances reviews data from the Indian Space Research Organization’s Chandrayaan-1 orbiter, which discovered water ice and mapped out a variety of minerals while surveying the Moon’s surface in 2008. ![]() The blue areas in this composite image from the Moon Mineralogy Mapper (M3) aboard the Indian Space Research Organization’s Chandrayaan-1 orbiter show water concentrated at the Moon’s poles. Homing in on the spectra of rocks there, researcher found signs of hematite, a form of rust. (ISRO/NASA/JPL-Caltech/Brown University/USGS) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Parker Solar Probe takes a look at Comet NEOWISE
The comet was discovered by NASA’s Near-Earth Object Wide-field Infrared Survey Explorer, or NEOWISE, on March 27th. Since then, the comet — called comet C/2020 F3 NEOWISE and nicknamed comet NEOWISE — has been spotted by several NASA spacecraft, including Parker Solar Probe, NASA’s Solar and Terrestrial Relations Observatory, the ESA/NASA Solar and Heliospheric Observatory, and astronauts aboard the International Space Station. ![]() An unprocessed image from the WISPR instrument on board NASA’s Parker Solar Probe shows comet NEOWISE on July 5, 2020, shortly after its closest approach to the Sun. The Sun is out of frame to the left. The faint grid pattern near the center of the image is an artifact of the way the image is created. The small black structure near the lower left of the image is caused by a grain of dust resting on the imager’s lens. (NASA/Johns Hopkins APL/Naval Research Lab/Parker Solar Probe/Brendan Gallagher) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Cold Atom Lab aboard International Space Station takes One Giant Leap for Quantum Science
A new study in the journal Nature builds on that legacy. In July 2018, NASA’s Cold Atom Lab became the first facility to produce that fifth state of matter, called a Bose-Einstein condensate (BEC), in Earth orbit. A fundamental physics facility on the International Space Station, Cold Atom Lab cools atoms down to ultracold temperatures in order to study their basic physical properties in ways that would not be possible on Earth. ![]() This image shows six finely tuned lasers used inside NASA’s Cold Atom Lab to slow down atoms, lowering their temperature. This is step one in a three-step cooling process. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Fermi Gamma-ray Space Telescope examines Pulsar’s Gamma-rays connection to Antimatter around Earth
“Our analysis suggests that this same pulsar could be responsible for a decade-long puzzle about why one type of cosmic particle is unusually abundant near Earth,” said Mattia Di Mauro, an astrophysicist at the Catholic University of America in Washington and NASA’s Goddard Space Flight Center in Greenbelt, Maryland. «Read the rest of this article» Sections: Technology | No Comments
NASA says Pressure Runs High at Edge of Solar System
Using observations of galactic cosmic rays — a type of highly energetic particle — from NASA’s Voyager spacecraft scientists calculated the total pressure from particles in the outer region of the solar system, known as the heliosheath. «Read the rest of this article» Sections: Technology | No Comments
NASA’s NuSTAR Space Telescope data shows Eta Carinae accelerating Cosmic RaysWritten by Francis Reddy
“We know the blast waves of exploded stars can accelerate cosmic ray particles to speeds comparable to that of light, an incredible energy boost,” said Kenji Hamaguchi, an astrophysicist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, and the lead author of the study. “Similar processes must occur in other extreme environments. Our analysis indicates Eta Carinae is one of them.” ![]() Eta Carinae’s great eruption in the 1840s created the billowing Homunculus Nebula, imaged here by Hubble. Now about a light-year long, the expanding cloud contains enough material to make at least 10 copies of our Sun. Astronomers cannot yet explain what caused this eruption. (NASA, ESA, and the Hubble SM4 ERO Team) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Hubble Space Telescope measurements show Universe expanding faster then expectedSpace Telescope Science Institute
That’s because the latest Hubble finding confirms a nagging discrepancy showing the universe to be expanding faster now than was expected from its trajectory seen shortly after the big bang. Researchers suggest that there may be new physics to explain the inconsistency. ![]() This illustration shows three steps astronomers used to measure the universe’s expansion rate (Hubble constant) to an unprecedented accuracy, reducing the total uncertainty to 2.3 percent. The measurements streamline and strengthen the construction of the cosmic distance ladder, which is used to measure accurate distances to galaxies near to and far from Earth. The latest Hubble study extends the number of Cepheid variable stars analyzed to distances of up to 10 times farther across our galaxy than previous Hubble results. (NASA, ESA, A. Feild (STScI), and A. Riess) (STScI/JHU) «Read the rest of this article» Sections: Technology | No Comments
NASA’s THEMIS Mission helps reveal mystery of Pulsating AuroraWritten by Mara Johnson-Groh
While scientists have long known auroras to be associated with solar activity, the precise mechanism of pulsating auroras was unknown. Now, new research, using data from NASA’s Time History of Events and Macroscale Interactions during Substorms — or THEMIS — mission and Japan’s Exploration of energization and Radiation in Geospace — shortened to ERG, or also known as Arase — satellite, has finally captured the missing link thought responsible for these auroras. «Read the rest of this article» Sections: Sports | No Comments
NASA’s Van Allen Probes mission and FIREBIRD II CubeSat discover Whistling Space Electrons’ OriginsWritten by Mara Johnson-Groh
Yet for decades, no one has known exactly what is responsible for hurling these energetic electrons on their way. Recently, two spacecraft found themselves at just the right places at the right time to witness first hand both the impulsive electron loss and its cause. ![]() The Van Allen Belts, shown in green in this illustration, are concentric doughnut-shaped belts filled with charged particles, trapped by Earth’s magnetic field. (Tony Phillips/NASA) «Read the rest of this article» Sections: Technology | No Comments
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