Read article: The enduring mystery of the solar corona
The Sun’s magnetic fields make its corona much hotter than the surface of the star. But how and why is still a mystery, as Philip G Judge explains
Read article: The Sun’s enigmatic crown
Understanding why the corona is so hot could help us predict space weather
Read article: Invading black hole or neutron star caused star to explode, say astronomers
Observation could explain a puzzling type of supernova
Read article: Solar polarization paradox resolved at last
Careful numerical modelling explains origin of polarized light emitted by sodium atoms in the solar atmosphere
Read article: New evidence supports dark-spot theory for Betelgeuse’s ‘Great Dimming’
But what caused that dark spot to form in the first place?
Read article: Solar radio waves could help monitor glacier thickness
Passive radar system offers energy and cost savings over existing methods
Read article: Ancient star likely created from a colossal hypernova explosion
Heavy elements found in an ancient star lying on the fringes of the Milky Way were likely produced by a magneto-rotational hypernova explosion
Read article: Electron capture supernova spotted four decades after first predicted
Observation suggest that the Crab Nebula was created by a similar explosion
Read article: Artificial intelligence can spot holes in the Sun’s corona
System could improve forecasts of disruptive space weather
Read article: Has Betelgeuse’s ‘Great Dimming’ finally been explained?
Cold spot and condensing gas cloud reduced light from nearby red supergiant, say astronomers
