NASA's Parker Solar Probe became the first spacecraft to fly through the Sun's corona on April 28, 2021, passing through the Alfvén surface (the boundary where the corona's magnetic field dominates over the outward solar wind) and sampling particles and magnetic fields directly. The milestone, announced by NASA in December 2021, was described as the equivalent of a spacecraft finally 'touching the Sun.'
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NASA's Parker Solar Probe became the first spacecraft to fly through the Sun's corona on April 28, 2021, passing through the Alfvén surface (the boundary where the corona's magnetic field dominates over the outward solar wind) and sampling particles and magnetic fields directly. The milestone, announced by NASA in December 2021, was described as the equivalent of a spacecraft finally 'touching the Sun.'
The year a spacecraft first passed through the Sun's corona, its outer atmosphere, making direct in-situ measurements.
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Limits Registry. LR-FIRST-SPACECRAFT-TOUCH-SUN. First spacecraft to fly through the Sun's corona. 2026.