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Solar wind forecasting will help define heliosphere’s boundaries

Scientists predict that New Horizons will encounter the termination shock as early as 2029 or as late as 2040, helping improve understanding of heliosphere interactions with interstellar space. The research aims to prepare for future missions exploring solar system boundaries.

SourceSouthwest Research Institute·JournalAdvances in Space Research·TypeData/statistical analysis·DateJun 22, 2026

UNH-led study solves mysteries of Voyager 1's journey into interstellar space

Voyager 1's journey into interstellar space has been clarified by a UNH-led study, revealing that the spacecraft crossed the heliopause but is now navigating a 'muddied' magnetic field region. This discovery confirms two key findings: the center of the IBEX ribbon is the direction of the interstellar magnetic field and Voyager 1 is bey...

SourceUniversity of New Hampshire·JournalThe Astrophysical Journal Letters·DateOct 28, 2015

Voyager's departure from the heliosphere

Voyager 1 has entered interstellar space, leaving the heliosphere and entering a region of cold, dark space. The spacecraft's plasma density measurements suggest it crossed the heliopause in August 2012, marking a significant technological achievement and a new chapter in human scientific endeavors.

SourceAmerican Association for the Advancement of Science (AAAS)·JournalScience·DateSep 12, 2013