Tootfinder

Superexpansion of interplanetary #CoronalMassEjection observed by Solar Orbiter and Wind spacecraft within 0.14 au radial separation: https://academic.oup.com/mnras/article/548/3/stag350/8661665?login=false -> Iowa physicists describe ‘super expansion’ magnetic cloud from the sun: https://now.uiowa.edu/news/2026/06/iowa-physicists-describe-super-expansion-magnetic-cloud-sun - findings reveal more about how gaseous explosions from the sun could be dangerous to Earth.

Since March the K-Cor coronagraph is finally back in action on #MaunaLoa - and at the #coronagraphs symposium in Boulder the value of a ground-based instrument was highlighted by Tom Berger: it catches a beginning #CoronalMassEjection almost an hour earlier than all existing coronagraphs in space which have to cover more of the surroundings of the Sun.