Parker Solar Probe Completes 27th Sun Pass at 430,000 mph, Matching 3.8 Million-Mile Record
Updated
Updated · spacedaily.com · May 21
Parker Solar Probe Completes 27th Sun Pass at 430,000 mph, Matching 3.8 Million-Mile Record
1 articles · Updated · spacedaily.com · May 21
NASA said Parker Solar Probe completed its 27th close solar approach on March 11, again reaching 3.8 million miles from the Sun’s surface and about 430,000 mph.
A 4.5-inch carbon-foam heat shield makes that orbit possible, keeping instruments near room temperature while the Sun-facing side endures roughly 1,600-1,800°F during recent passes.
At perihelion, the spacecraft operates autonomously and later checks in with a beacon tone because Earth cannot guide it in real time that close to the Sun.
Seven Venus gravity assists, capped by a final flyby in November 2024, lowered Parker into the tightest solar orbit ever flown and set up its repeated record-setting passes.
The mission, now beyond its original seven-year baseline, is still sampling the corona and solar wind to improve understanding of solar heating, magnetic switchbacks and storm forecasting.
How will new solar missions finally let us predict the Sun's violent storms before they can cripple our technology?
When the Parker Probe finally perishes, what great solar mystery will be left for the next generation to solve?
How could the probe's revolutionary heat shield technology solve extreme heat challenges right here on Earth?
Breaking Barriers: Parker Solar Probe’s 27th Close Approach and Its Transformative Impact on Solar Physics
Overview
On March 11, 2026, the Parker Solar Probe completed its 27th close approach to the Sun, marking a major milestone in its mission to study our star. This achievement highlights the probe’s ongoing efforts to explore the Sun’s environment closer than any spacecraft before. As a key part of NASA’s Living With a Star program, managed by NASA’s Goddard Space Flight Center and operated by the Johns Hopkins Applied Physics Laboratory, the mission aims to investigate how the Sun affects life and society on Earth. Each close pass brings new data, pushing the boundaries of solar science and engineering.