Solar storm surveys by ancient Assyrian astronomers

A research team led by the University of Tsukuba combined observations from ancient cuneiform tablets that mention unusual red skies with radioisotope data to identify solar storms that likely occurred around 679 to 655 BCE, ...

Dazzled by the bright Southern Lights

The past week saw a fantastic treat for aurora watchers. Generally it is the southern part of the country, Tasmania in particular, that sees the most impressive displays. But this aurora has been so intense that it was even ...

Ten things we've learned about the sun from NASA's SDO this decade

In February 2020, NASA's Solar Dynamics Observatory—SDO—is celebrating its 10th year in space. Over the past decade the spacecraft has kept a constant eye on the sun, studying how the sun creates solar activity and drives ...

The mystery of coronal heating

Imagine standing around a roaring campfire, roasting s'mores. You feel the warmth of the flames as the marshmallows crackle. Now back away. You get cooler, right?

Sun delivered curveball of powerful radiation at Earth

A potent follow-up solar flare, which occurred Friday (Jan. 17, 2012), just days after the Sun launched the biggest coronal mass ejection (CME) seen in nearly a decade, delivered a powerful radiation punch to Earth's magnetic ...

First 'extreme' solar storm in 20 years brings spectacular auroras

Earth was set to be struck by more powerful solar storms on Saturday, a day after the most extreme events in two decades triggered spectacular celestial light shows from Tasmania to Britain and threatened possible disruptions ...

NASA's Psyche delivers first images and other data

NASA's Psyche spacecraft is on a roll. In the eight weeks since it left Earth on Oct. 13, the orbiter has performed one successful operation after another, powering on scientific instruments, streaming data toward home, and ...

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