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Parker Solar Probe

All articles tagged with #parker solar probe

space22 days ago•2 min saved

Parker Solar Probe Seizes Speed Record, Daring the Sun's Heat

NASA’s Parker Solar Probe, built by Johns Hopkins APL and launched in 2018, has reached about 430,000 mph—its fastest pace yet—while skimming the Sun’s corona at roughly 3.8 million miles from the surface and enduring temperatures around 1,700°F, to study the Sun’s atmosphere; the mission’s future is under review amid NASA staffing and budget pressures, with the article noting another fast self-propelled craft, New Horizons, for comparison.

via Jalopnik|

#nasa #parker-solar-probe #solar-corona

space29 days ago•14 min saved

Behind Parker’s Shield: How a Tiny Carbon Layer Keeps It Cool Near the Sun

Parker Solar Probe survives near the Sun not by withstanding a single furnace-like temperature, but through a precisely engineered heat-management system: an 11.5 cm carbon‑carbon shield with a white ceramic coating, a clever shadow geometry, restricted conduction, water‑cooled solar arrays, and radiators that keep most of the spacecraft at room temperature while the sunward face glows at roughly 1,400 C. Instruments sit in or around the shield’s shadow and are made from high‑temperature materials, with seven sun sensors ensuring the shadow stays aligned. The mission’s radiation comes from intense sunlight (about 500 times Earth’s flux) rather than a million‑degree plasma, so the shield reflects energy and slows conduction, while the rest of the solar‑wind science package samples the environment from the edge of the shield. The result is a spacecraft designed to stay cool enough to operate while approaching within ~6 million kilometers of the Sun.

via Space Daily|

#nasa #parker-solar-probe #radiative-heat-transfer

space1 month ago•11 min saved

Parker Solar Probe shatters solar speed record during corona flyby

NASA’s Parker Solar Probe reached about 692,000 km/h (192.22 km/s) relative to the Sun while skimming the Sun’s corona during its 28th close approach in June 2026, a record for a human-made object. The peak speed comes from a highly elliptical near-Sun orbit aided by Venus flybys; Parker’s shield protects its instruments as it studies coronal heating and solar wind, with mission extensions still under review and no sustained cruise speed implied by this record.

via Space Daily|

#gravity-assists #parker-solar-probe #solar-corona

space1 month ago•103 min saved

Dust Near the Sun Offers Clue to the Corona’s Extreme Heat

NASA’s Parker Solar Probe detected voltage spikes from clouds of charged dust near the Sun, suggesting dust interacts with Alfvén waves and the solar wind to deposit energy into the corona. This could help explain why the corona reaches millions of degrees hotter than the Sun’s surface and may influence how future solar missions study near-sun dust.

via Space|

#alfven-waves #corona #dust

space1 month ago•13 min saved

Parker Solar Probe Surges Near the Sun Behind Ultra-Light Heat Shield

NASA’s Parker Solar Probe, launched in 2018, pushed closer to the Sun than any spacecraft by reaching about 3.8 million miles from the solar surface at ~430,000 mph during the December 2024 pass; its 4.5-inch-thick, 2.3-meter heat shield—a carbon-carbon sandwich with a carbon foam core weighing ~160 pounds and a white alumina coating—keeps the instruments at room temperature while the sun-facing side reaches up to 2,500°F, with actual temperatures staying well below worst-case estimates, providing thermal margin; the mission has transformed solar physics by directly measuring the corona and solar wind, and is planned to operate through 2026 as it conducts further perihelia.

via Space Daily|

#carbon-foam #nasa #parker-solar-probe

space1 month ago•14 min saved

Gravity, not a bigger engine, drives Parker Solar Probe's sun-speed record

Parker Solar Probe reached a record ~430,000 mph near the Sun not primarily through propulsion, but through seven Venus gravity assists over seven years that gradually lowered its solar orbit. As the probe fell closer to the Sun, the Sun's gravity converted potential energy into kinetic energy, making it the fastest human-made object in history. The feat highlights orbital design and gravity as key drivers in spaceflight, while the mission continues to study the Sun’s corona and solar wind.

via Space Daily|

#gravity-assist #orbital-mechanics #parker-solar-probe

space2 months ago•13 min saved

Parker Solar Probe Sets Speed and Shield Milestone at Sun’s Edge

In December 2024, NASA’s Parker Solar Probe flew into the Sun’s outer atmosphere, the corona, at a record 430,000 mph, surviving thanks to a 4.5-inch carbon-carbon Thermal Protection System that kept its interior near room temperature and enabling data return on the Sun’s extreme environment while it continues its mission to study solar wind.

via 19FortyFive|

#nasa #parker-solar-probe #solar-wind

space2 months ago•12 min saved

Parker Solar Probe Finds Unexpected High-Energy Protons From Near-Sun Magnetic Reconnection

NASA’s Parker Solar Probe crossed the solar corona during perihelion and recorded protons at energies far above what existing reconnection-driven acceleration models at the heliospheric current sheet could predict, linking magnetic island merging in the reconnection exhaust to a near-Sun source of high-energy particles and prompting questions about the limits of current particle-acceleration theories and implications for coronal heating.

via Space Daily|

#heliospheric-current-sheet #magnetic-reconnection #parker-solar-probe

space2 months ago•9 min saved

Parker Solar Probe Dives into Corona to Untangle the Sun’s Heat Mystery

NASA’s Parker Solar Probe has repeatedly traversed the Sun’s corona—the outer atmosphere where temperatures soar above a million degrees—giving in-situ measurements that deepen the mystery of why the corona is so hot. A December 2024 near-surface pass (6.1 million km from the Sun, traveling ~692,000 km/h) confirmed the craft’s survival and enabled direct plasma, magnetic-field, and flow readings. The results keep the heating question open, highlighting two leading ideas—wave heating and small-scale magnetic reconnection (nanoflares)—neither of which is yet confirmed as dominant. The mission also finds switchbacks (abrupt magnetic reversals) abundant in the near-Sun solar wind but apparently absent inside the corona, refining how the wind is accelerated and fed by coronal processes. With repeated passes through late 2026 and NASA’s review looming, Parker’s data are helping to distinguish between competing explanations, but the exact energy transfer powering the corona remains unresolved.

via Space Daily|

#corona #heating-mechanisms #parker-solar-probe

science2 months ago•12 min saved

Solar Enigma: Why the Corona Outshines the Sun’s Surface

The Sun’s visible surface sits at about 5,500°C while the corona soars to 1–2 million degrees; scientists agree magnetic energy powers this heating but debate remains over whether Alfvén waves, nanoflares, or a combination drive it, with missions like Parker Solar Probe and Solar Orbiter narrowing the options but not yet solving the mystery.

via Space Daily|

#alfven-waves #coronal-heating #nanoflares

science3 months ago•14 min saved

Parker Solar Probe Braces the Sun at 430,000 mph Behind a 4.5-Inch Shield

The Parker Solar Probe is now flying through the Sun’s outer atmosphere, the corona, at about 430,000 mph—fast enough to cross the continental U.S. in 20 seconds. Behind a 4.5-inch-thick carbon-carbon shield with a carbon foam core, the electronics stay near room temperature while the shield’s face reaches roughly 2,500°F. The shield’s design lets it approach the Alfvén surface and sample fast‑moving solar wind and structures, a capability made possible by seven Venus flybys to tighten its orbit. The probe carries four instrument suites (FIELDS, SWEAP, WISPR, ISʘIS) to study electric and magnetic fields, particles, and corona imagery, and its speed and shielding enable science beyond the original plan.

via Space Daily|

#carbon-foam #corona #heat-shield

space3 months ago•10 min saved

Parker Solar Probe Pushes into the Sun’s Shadow, Shield Protects the Mission

The Parker Solar Probe remains the fastest human-made object, zipping through the Sun’s corona at about 430,000 mph and protected by a 4.5-inch-thick carbon-foam heat shield; after seven Venus gravity assists it now sits in its closest solar orbit, operating autonomously and returning data on the corona and solar wind as NASA extends the mission beyond its original plan.

via Space Daily|

#carbon-foam-core #heat-shield #parker-solar-probe

science3 months ago•12 min saved

Parker Solar Probe Survives the Sun’s Inferno Behind Ultra-Light Carbon Shield

NASA’s Parker Solar Probe travels about 430,000 mph as it skimms the Sun with a 4.5-inch carbon-foam thermal shield that keeps its instruments near room temperature, enabling unprecedented study of the corona, solar wind, and magnetic switchbacks during close solar passes.

via Space Daily|

#carbon-foam #heat-shield #parker-solar-probe

science6 months ago•4 min saved

Parker Solar Probe Sets Proximity Record, Revealing New Solar Wind Secrets

NASA's Parker Solar Probe flew closer to the Sun than any spacecraft before, reaching about 3.8 million miles from the surface, and gathered detailed data on the solar wind and the Sun’s outer atmosphere to help explain solar heating and improve space weather forecasting.

via The Daily Galaxy|

#nasa #parker-solar-probe #science

space6 months ago•9 min saved

Parker Solar Probe Reveals the Hidden Heating of the Solar Wind

NASA’s Parker Solar Probe, flying closer to the Sun than any prior mission (within 3.8 million miles of the surface), uses a new ALPS analysis tool to map how energy heats and accelerates the solar wind, addressing the coronal heating puzzle and improving space-weather forecasts while providing insights into plasma behavior across the cosmos.

via SciTechDaily|

#parker-solar-probe #plasma-physics #solar-wind