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New Horizons Ends 321-Day Hibernation, Targets Solar Wind Mix

7/11/2026

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Summary

Story summary

New Horizons exited hibernation on June 23, 2026 after a 321-day sleep.
Mission operations manager Alice Bowman said all weekly status checks during hibernation were green.
The probe will transmit stored data and study hydrogen and the termination shock in the outer heliosphere.
Scientists expect the more sensitive measurements to improve understanding of how the solar wind mixes with interstellar particles.

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Story summary

New Horizons exited hibernation on June 23, 2026 after a 321-day sleep.
Mission operations manager Alice Bowman said all weekly status checks during hibernation were green.
The probe will transmit stored data and study hydrogen and the termination shock in the outer heliosphere.
Scientists expect the more sensitive measurements to improve understanding of how the solar wind mixes with interstellar particles.