The Sun doesn’t just shine—it also shapes the high-energy γ-ray sky by interacting with cosmic rays. Using 15 years of Fermi-LAT data, researchers detected the solar γ-ray halo in unprecedented detail and linked it to the same cosmic ray electrons measured near Earth. This study reveals how γ-ray observations can uncover the invisible influence of the Sun’s magnetic field across the heliosphere.
We interview AAS 244 keynote speaker Prof. Kristopher Klein!
In the latest of our #UndergradResearch series, discover how Winry Ember is analyzing plasma data to calibrate instruments on the Parker Solar Probe!
Voyager 2 finally crossed the heliopause, the edge of our solar system – so what’s out there?
Douglas Adams’ fictional Ford Prefect famously warned us of eddies in the spacetime continuum. Has the IBEX spacecraft now found evidence that they really exist?
Recent data from IBEX has revealed that our decades-old model of the heliosphere is wrong: there is no bow shock ahead of the heliosphere in the ISM.