https://phys.org/news/2018-06-solar-heliosphere-balloons.html

In two recent articles, scientists used IBEX data along with sophisticated numerical models to understand what these rebounding atoms can tell us about the evolving shape and structure of our heliosphere, the giant bubble carved out by the solar wind.

"The results show that the 2014 solar wind pressure increase has already propagated from the Sun to the outer heliosphere, morphing and expanding our heliosphere's boundaries in their closest direction," said David McComas, the principal investigator for the IBEX mission at Princeton University in Princeton, New Jersey. "IBEX data pouring in over the next few years will let us chart the expansion and evolving structure of the other portions of the heliosphere's outer boundaries."