Tag: The Sun

NASA’s daredevil solar spacecraft survives 2nd close flyby of our sun

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NASA’s Parker Solar Probe has successfully completed its second close flyby of the sun, the space agency announced earlier this week. The car-sized spacecraft swooped within 8 million miles (6.1 million kilometers) of the sun‘s surface at a whopping 430,000 miles per hour (692,000 kilometers per hour), matching the historic record it set during its encounter on Christmas Eve last year. During this approach, which occurred on Saturday (March 22), the Parker Solar Probe once again operated autonomously, with its four science instruments programmed to collect science data about solar…

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How Can I See the Northern Lights? We Asked a NASA Expert: Episode 54

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2 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) How can I see the northern lights? To see the northern lights, you need to be in the right place at the right time. Auroras are the result of charged particles and magnetism from the Sun called space weather dancing with the Earth’s magnetic field. And they happen far above the clouds. So you need clear skies, good space weather at your latitude and the higher, more polar you can be, the better. You need a lot of patience…

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NASA’s EZIE Launches on Mission to Study Earth’s Electrojets

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A SpaceX Falcon 9 rocket lifts off from Vandenberg Space Force Base, carrying NASA’s EZIE spacecraft into orbit. SpaceX Under the nighttime California sky, NASA’s EZIE (Electrojet Zeeman Imaging Explorer) mission launched aboard a SpaceX Falcon 9 rocket at 11:43 p.m. PDT on March 14. Taking off from Vandenberg Space Force Base near Santa Barbara, the EZIE mission’s trio of small satellites will fly in a pearls-on-a-string configuration approximately 260 to 370 miles above Earth’s surface to map the auroral electrojets, powerful electric currents that flow through our upper atmosphere in the polar…

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Cosmic Mapmaker: NASA’s SPHEREx Space Telescope Ready to Launch

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6 min read Preparations for Next Moonwalk Simulations Underway (and Underwater) Ahead of launch, NASA’s SPHEREx is enclosed in a payload fairing at Vandenberg Space Force Base on March 2. The observatory is stacked atop the four small satellites that make up the agency’s PUNCH mission. NASA/BAE Systems/Benjamin Fry NASA’s latest space observatory is targeting a March 8 liftoff, and the agency’s PUNCH heliophysics mission is sharing a ride. Here’s what to expect during launch and beyond. In a little over a day, NASA’s SPHEREx space telescope is slated to…

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NASA’s EZIE Launching to Study Magnetic Fingerprints of Earth’s Aurora

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5 Min Read NASA’s EZIE Launching to Study Magnetic Fingerprints of Earth’s Aurora High above Earth’s poles, intense electrical currents called electrojets flow through the upper atmosphere when auroras glow in the sky. These auroral electrojets push about a million amps of electrical charge around the poles every second. They can create some of the largest magnetic disturbances on the ground, and rapid changes in the currents can lead to effects such as power outages. In March, NASA plans to launch its EZIE (Electrojet Zeeman Imaging Explorer) mission to learn…

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NASA’s PUNCH Mission to Revolutionize Our View of Solar Wind 

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6 Min Read NASA’s PUNCH Mission to Revolutionize Our View of Solar Wind  Earth is immersed in material streaming from the Sun. This stream, called the solar wind, is washing over our planet, causing breathtaking auroras, impacting satellites and astronauts in space, and even affecting ground-based infrastructure.  NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission will be the first to image the Sun’s corona, or outer atmosphere, and solar wind together to better understand the Sun, solar wind, and Earth as a single connected system.   Launching no earlier…

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Tiny plasma jets on the sun drive the elusive solar wind, Europe’s Solar Orbiter reveals

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Solar scientists have found tiny, short-lived jets of energy on our sun to be the primary drivers of the solar wind, marking a step toward decoding our star’s elusive behavior and, eventually, refining predictions of its storms. The “solar wind” refers to pockets of energetic particles blasted out from the sun. These particles are occasionally directed toward Earth, like last summer when a rare cluster of such storms rained on our planet and sparked breathtaking auroras across the globe — likely the strongest auroras we’ve seen in centuries. The solar…

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NASA CubeSat Finds New Radiation Belts After May 2024 Solar Storm

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5 min read NASA CubeSat Finds New Radiation Belts After May 2024 Solar Storm Key Points The May 2024 solar storm created two new temporary belts of high-energy particles surrounding Earth. Such belts have been seen before, but the new ones were particularly long lasting, especially the new proton belt.  The findings are particularly important for spacecraft launching into geostationary orbits, which can be damaged as they traverse the dangerous belts. The largest solar storm in two decades hit Earth in May 2024. For several days, wave after wave of…

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Invisible ‘flickering’ on the sun could predict potentially dangerous solar flares hours in advance

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Shining loops of plasma on the surface of the sun “flicker” hours before they unleash potentially dangerous solar flares, a new study shows. The new findings could help create more reliable space weather forecasts, researchers say. Solar flares are violent outbursts of electromagnetic radiation that shoot from the sun when invisible magnetic field lines at the sun’s surface get twisted up until they eventually snap. These outbursts most commonly occur around sunspots — dark patches where magnetic field lines poke through our home star’s surface — and often pull up…

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NASA Solar Observatory Sees Coronal Loops Flicker Before Big Flares

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3 min read NASA Solar Observatory Sees Coronal Loops Flicker Before Big Flares For decades, scientists have tried in vain to accurately predict solar flares — intense bursts of light on the Sun that can send a flurry of charged particles into the solar system. Now, using NASA’s Solar Dynamics Observatory, one team has identified flickering loops in the solar atmosphere, or corona, that seem to signal when the Sun is about to unleash a large flare. These warning signs could help NASA and other stakeholders protect astronauts as well…

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