Category: Astronomy

This extreme star might have huge tidal waves

Like ocean surf smashing on a sandy beach, enormous waves of plasma may crash onto the surface of one massive star. The star is part of a pair, stretched and pulled by its companion’s gravity. That gravitational tug-of-war causes the star’s brightness to change drastically and rhythmically. Now, a computer simulation suggests that this steady […]

Coronal rain has been seen splashing on the sun

Plasma rain in the sun’s atmosphere makes a splash when it lands. New observations from the European Space Agency’s Solar Orbiter have revealed previously unseen details of how this coronal rain falls, including bright fireball effects and sudden upward surges in plasma. “These are the highest resolution images we have ever obtained from the solar […]

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