NASA's Parker Solar Probe Is Beaming Back Extra Data as it Buzzes the Sun

Artist's illustration of NASA's Parker Solar Probe approaching the sun.
Artist's illustration of NASA's Parker Solar Probe approaching the sun. (Image credit: Steve Gribben/NASA/John's Hopkins APL)

NASA's Parker Solar Probe has already completed two daring dives into the sun's atmosphere, and now scientists have realized that they'll be able to gather more data than expected from the mission.

The data bonanza stems from a particularly well-performing telecommunications system, which is letting the spacecraft phone home more often than its managers had thought it could. The extra data means that the team got its hands on information faster than expected; NASA also instructed the spacecraft to gather extra measurements on its second pass around the sun.

"All of the expected science data collected through the first and second encounters is now on the ground," Nickalaus Pinkine, Parker Solar Probe mission operations manager at Johns Hopkins University's Applied Physics Laboratory, said in a statement. "As we learned more about operating in this environment and these orbits, the team did a great job of increasing data downloads of the information gathered by the spacecraft's amazing instruments."

Related: NASA's Parker Solar Probe Mission to the Sun in Pictures

The increased communications operations mean that Parker Solar Probe had already sent back the 22 gigabytes of originally planned data from the first two passes by early May. Now, the spacecraft is transmitting an extra 25 gigabytes of data that its instruments gathered after the spacecraft's managers recognized the opportunity at hand.

Scientists working on the mission are already digging into the data the spacecraft has sent home to date, and the Parker Solar Probe team intends to publish it later this year. The spacecraft is also barreling toward its third flyby of the sun, which will begin on Aug. 27 for a closest approach on Sept. 1. 

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Meghan Bartels
Senior Writer

Meghan is a senior writer at and has more than five years' experience as a science journalist based in New York City. She joined in July 2018, with previous writing published in outlets including Newsweek and Audubon. Meghan earned an MA in science journalism from New York University and a BA in classics from Georgetown University, and in her free time she enjoys reading and visiting museums. Follow her on Twitter at @meghanbartels.