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Editor’s note: This post was updated on April 3, 2019, to include the time of Parker Solar Probe’s perihelion. To date, Parker Solar Probe has completed four of its planned 24 orbits around the Sun. The public can access the latest data through NASA’s Space Physics Data Facility (SPDF) and Solar Data Analysis Center (SDAC), the APL Parker Solar Probe Gateway, and the Science Operation Centers of the four science investigation teams (the University of California, Berkeley; Princeton University; Harvard-Smithsonian Center for Astrophysics; and Naval Research Laboratory.) At the time of perihelion, the spacecraft was about 15 million miles from the Sun’s surface, traveling at more than 213,200 miles per hour. This weekend’s perihelion was set up by the probe’s third Venus flyby. These early observations – while not yet examples of the key science observations Parker Solar Probe will take closer to the Sun – show that each of the instruments is working well. Two years into its journey, Parker Solar Probe remains healthy and operating normally. New augmented reality technology developed by NASA allows the Parker Solar Probe spacecraft team to explore, rehearse, and perfect their fabrication and integration procedures—all in an immersive digital environment. Two years into its journey, Parker Solar Probe has already revealed a complicated, active system swirling near the Sun’s surface. The spacecraft, which has already completed four progressively closer orbits around the Sun, activated its instruments at a distance of 62.5 million miles from the Sun’s surface, some 39 million miles farther from the Sun than a typical solar encounter. Solar Probe Plus Project Scientist Nicky Fox, of the Johns Hopkins University Applied Physics Laboratory (APL), was featured in a Discovery Channel Facebook Live event on Feb. 8, 2017. Credit: NASA Goddard/CIL/Adriana Manrique Gutierrez. On Dec. Nearly a year and a half into its mission, Parker Solar Probe has returned gigabytes of data on the Sun and its atmosphere. As NASA’s Parker Solar Probe spacecraft begins its first historic encounter with the sun’s corona in late 2018—flying closer to our star than any other mission in history—a revolutionary cooling system will keep its solar arrays at peak performance, even in extremely hostile conditions.Every instrument and system on board Parker Solar Probe (with the exception of four antennas and a special particle detector) will be hidden from the sun behind a breakthrough thermal protection system (TPS)—an eight-foot diameter shield that the spacecraft uses to defend itself against the intense heat and energy of our star. Parker Solar Probe performs its third Venus flyby on July 11, 2020 (UTC), setting the spacecraft up for another record-breaking close approach to the Sun in September 2020. Credit: NASA/Johns Hopkins APL/Steve Gribben. Mission controllers at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, received a “status A” beacon from the spacecraft at 4:40 p.m. EDT. How do you prepare to move the first spacecraft to touch the Sun? Come inside the clean room at Johns Hopkins APL and learn more about this historic mission, the revolutionary spacecraft, and the people who are making it possible https://www.facebook.com/NAS. At the heart of understanding our space environment is the knowledge that conditions throughout space — from the Sun to the atmospheres of planets to the radiation environment in deep space — are connected.Studying this connection – a field of science called heliophysics — is a complex task: Researchers track sudden eruptions of material, radiation, and particles against the background of the ubiquitous outflow of solar material.A confluence of events in early 2020 created a nearly ideal space-based laboratory, combining the alignment of some of humanity's best observatories — including Parker Solar Probe, during its fourth solar flyby — with a quiet period in the Sun's activity, when it's easiest to study those background conditions. © 2019 The Johns Hopkins University Applied Physics Laboratory LLC. On Saturday, Jan. 27, NASA’s Parker Solar Probe began space environment testing, starting with the air being pumped out of the 40-foot-tall thermal vacuum chamber at NASA’s Goddard Space Flight Center in Greenbelt, Maryland where the spacecraft is currently housed. The nearly two-month campaign is spurred by Parker Solar Probe’s earlier observations, which revealed significant rotation of the solar wind and solar wind phenomena occurring much farther from the Sun than previously thought. To protect NASA's Parker Solar Probe from the intense heat of the Sun's atmosphere, scientists and engineers developed a revolutionary Thermal Protection System, or TPS. Made of electrons, protons and heavier ions, the solar wind courses through the solar system at roughly 1 million mph (1.6 million kph), barreling over everything in its path. The spacecraft, about the size of a small car, will travel directly into the Sun's atmosphere about 4 million miles from our star's surface. During this solar encounter phase, which lasts until April 10, the spacecraft’s four suites of science instruments are fully operational and storing science data collected from within the Sun’s corona. NASA’s Parker Solar Probe, secured inside its payload fairing, was moved July 30, 2018, from nearby Astrotech Space Operations in Titusville, Florida, to Space Launch Complex 37 on Cape Canaveral Air Force Station. Flight controllers at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, received a “Status A” signal from the spacecraft through NASA’s Deep Space Network at 4:45 a.m. EDT; Status A is the best of four possible status signals, and indicates that the spacecraft is operating nominally. Same way you would move anything else: carefully wrap it, pack it in a large container, and perform a nitrogen purge. There was not enough time remaining in the window to recycle. NASA will make an announcement about the agency’s first mission to fly directly into our sun’s atmosphere during an event at 11 a.m. EDT Wednesday, May 31, from the University of Chicago’s William Eckhardt Research Center Auditorium. Watch in 360 degrees as Parker Solar Probe launches aboard a Delta IV Heavy rocket lifts off from Space Launch Complex-37 at Cape Canaveral Air Force Station in Florida. On May 9, 2020, NASA’s Parker Solar Probe began its longest observation campaign to date. NASA’s Parker Solar Probe has arrived in Florida to begin final preparations for its launch to the Sun, scheduled for July 31, 2018. During this solar encounter phase, which lasts until April 10, the spacecraft's four suites of science instruments are fully operational and storing science data collected from within the Sun's corona. With a few electrical connections and several turns of a wrench, Solar Probe Plus had its first onboard scientific instrument. This is when Parker Solar Probe will perform its third Venus gravity assist, which will allow the spacecraft to shed some of its orbital energy and get much closer to the Sun on the following orbit. Mission controllers at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, received a “status A” beacon from the spacecraft at 5:20 a.m. University of Chicago professor emeritus Eugene Parker, for whom Parker Solar Probe is named, has been awarded the 2020 Crafoord Prize in Astronomy “for pioneering and fundamental studies of the solar wind and magnetic fields from stellar to galactic scales.

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