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Recent Articles
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Topic: Magnetic Field
Uranus is the seventh planet from the Sun and has two sets of rings around its equator. The planet, which has four times the diameter of Earth, rotates on its side, making it different from all other planets in the solar system. «Read the rest of this article» Sections: Technology | No Comments
NASA data used to explore Solar Wind with a New View of Small Sun Structures
The Sun’s magnetic influence stretches billions of miles, far past the orbit of Pluto and the planets, defined by a driving force: the solar wind. ![]() Scientists used image processing on high-resolution images of the Sun to reveal distinct “plumelets” within structures on the Sun called solar plumes. The full-disk Sun and the left side of the inset image were captured by NASA’s Solar Dynamics Observatory in a wavelength of extreme ultraviolet light and processed to reduce noise. The right side of the inset has been further processed to enhance small features in the images, revealing the edges of the plumelets in clear detail. (NASA/SDO/Uritsky, et al) «Read the rest of this article» Sections: Technology | No Comments
NASA extends Juno, Insight missions
The missions – Juno and InSight – have each increased our understanding of our solar system, as well as spurred new sets of diverse questions. ![]() NASA has extended both the Juno mission at Jupiter through September 2025 (left) and the InSight mission at Mars through December 2022. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Lunar Gateway to be equipped with Instruments to Forecast Weather Forecast for Artemis Missions
For Artemis astronauts traveling on missions to the Moon, two space weather instrument suites, NASA’s HERMES and ESA’s ERSA, will provide an early forecast. Weather in this case means energized, subatomic particles and electromagnetic fields hurtling through the solar system. ![]() Artist’s concept of the Gateway Power and Propulsion Element, or PPE, and Habitation and Logistics Outpost, or HALO, in orbit around the Moon. The gold box on the right side of the image depicts the HERMES payload. The ERSA payload is the silver box just below it. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Perseverance Mars rover sensors to provide Mars Weather Reports
But the rover will also provide key atmospheric data that will help enable future astronauts to the Red Planet to survive in a world with no breathable oxygen, freezing temperatures, planet wide dust storms, and intense radiation from the Sun. ![]() NASA’s Perseverance Mars rover has two wind sensors just below its mast, or “head.” They’re part of MEDA, a weather science package that will provide vital data on the Martian surface, especially dust in the atmosphere. (NASA/JPL-Caltech) «Read the rest of this article» Sections: Technology | No Comments
NASA study shows Earth, Moon used to share Magnetic Shield
“The Moon seems to have presented a substantial protective barrier against the solar wind for the Earth, which was critical to Earth’s ability to maintain its atmosphere during this time,” said Jim Green, NASA’s chief scientist and lead author of the new study. “We look forward to following up on these findings when NASA sends astronauts to the Moon through the Artemis program, which will return critical samples of the lunar South Pole.” ![]() This illustration shows magnetic field lines that Earth generates today. The Moon no longer has a magnetic field. (NASA) «Read the rest of this article» Sections: Technology | 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’s Juno Spacecraft gets first ever pictures of Jupiter’s Moon Ganymede
The only moon in the solar system that is larger than the planet Mercury, Ganymede consists primarily of water ice. Its composition contains fundamental clues for understanding the evolution of the 79 Jovian moons from the time of their formation to today. ![]() These images the JIRAM instrument aboard NASA’s Juno spacecraft took on Dec. 26, 2019, provide the first infrared mapping of Ganymede’s northern frontier. Frozen water molecules detected at both poles have no appreciable order to their arrangement and a different infrared signature than ice at the equator. (NASA/JPL-Caltech/SwRI/ASI/INAF/JIRAM) «Read the rest of this article» Sections: Technology | No Comments
NASA’s Dione CubeSat mission to study Earth’s Upper Atmosphere, Space Weather
The new mission, called Dione after the ancient Greek goddess of the oracles, will carry four miniaturized instruments to study how Earth’s upper atmospheric layers react to the ever-changing flow of solar energy into the magnetosphere — the enveloping bubble of magnetic field around Earth that deflects most of the particles that erupt from the Sun. Earth’s upper atmosphere is where most low-Earth-orbiting satellites reside, and their orbits are strongly affected by sudden density changes created by space weather. ![]() Dione will gather data not collected since NASA’s dual-spacecraft Dynamics Explorer mission launched in the early 1980s. (NASA) «Read the rest of this article» Sections: Technology | No Comments
NASA Science continues from Home Offices, Video Conferencing in response to Coronavirus
With most personnel supporting missions remotely to keep onsite staff at a minimal level in response to Coronavirus (COVID-19), the Agency is moving ahead strongly with everything from space exploration to using our technology and innovation to help inform policy makers. «Read the rest of this article» Sections: Technology | No Comments
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