Millions of kilometres from Earth, NASA’s Parker Solar Probe is hurtling through the Sun’s blistering heat. This remarkable spacecraft has ventured closer to the Sun than any before and reached a record-breaking speed of 687,000 kilometres per hour, unmatched by any other object in the universe.

Between September 10 and 20, 2025, the Parker Solar Probe completed its latest solar encounter, its fourth major flyby, passing through the Sun’s corona, the outermost layer of its atmosphere.

On September 18, the probe sent a signal back to Earth confirming all systems were normal, much to the relief of scientists.

During the solar encounter, the probe maintained its incredible speed of 687,000 km/h, a pace it previously achieved in December 2024, and March and June 2025, equivalent to travelli

See Full Page