Juno swoops around giant Jupiter
Jupiter is the largest and most massive planet in our solar system. NASA's Juno spacecraft arrived at Jupiter on 4 July 2016 and made its first close pass on 27 August 2016. Bolton
et al.
present results from Juno's flight just above the cloud tops, including images of weather in the polar regions and measurements of the magnetic and gravitational fields. Juno also used microwaves to peer below the visible surface, spotting gas welling up from the deep interior. Connerney
et al.
measured Jupiter's aurorae and plasma environment, both as Juno approached the planet and during its first close orbit.
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This commentary serves to provide a rapid analysis of the impact of coronavirus disease 2019 (COVID-19) on sporting mass gatherings. The focus of this commentary surrounds sporting mass gatherings and strategies to mitigate the spread of COVID-19, with a particular focus on the UEFA EURO 2020 competition. Further references to the 2020 Olympic Games, and community recreational football are made. The intention is to stimulate discussion, analysis, interest and research on what the initial impact of COVID-19 has on sport. COVID-19 could fundamentally change the way sport operates in the future and requires further analysis. We hope this commentary provides an interesting record and reference point for future research and practice of those operating in sporting organisations. Learning lesson from this crisis, must ensure sport managers and practitioners are better prepared in sport and society for similar events in the future.
We present the first comparison of Jupiter's auroral morphology with an extended, continuous, and complete set of near‐Jupiter interplanetary data, revealing the response of Jupiter's auroras to the interplanetary conditions. We show that for ∼1–3 days following compression region onset, the planet's main emission brightened. A duskside poleward region also brightened during compressions, as well as during shallow rarefaction conditions at the start of the program. The power emitted from the noon active region did not exhibit dependence on any interplanetary parameter, though the morphology typically differed between rarefactions and compressions. The auroras equatorward of the main emission brightened over ∼10 days following an interval of increased volcanic activity on Io. These results show that the dependence of Jupiter's magnetosphere and auroras on the interplanetary conditions are more diverse than previously thought.
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