Observations from multiple spacecraft stationed around our solar system revealed the longitudinal behavior of galactic cosmic ray flux decreases associated with a passing coronal mass ejection.
Microwave observations by the Juno spacecraft and modeling of impact-induced dirtiness place strong constraints on the degree of contamination of Ganymede’s surface as well as the total impact flux.
New modeling provides insight into the coronae of solar-type stars that rotate far more rapidly than the Sun, yielding X-ray spectra and luminosities for these dense and ultra-hot coronae.
An analysis of the solar energetic particle proton population suggests that the temperature of this population hovers around 1 MeV while the density spans several orders of magnitude.
No radio emission was detected from a sample of old (>1 year) supernovae, despite the expectation that these supernovae exploded into dense circumstellar material.
Researchers have discovered linearly polarized scattered light from a hot Jupiter exoplanet, best explained by the presence of silicate particles with effective radii of 0.038 micron.