Nearby Supernovae Exploded Just a few Million Years Ago, Leading to a Wave of Star Formation Around the Sun

The Sun isn’t the only star in this galactic neighbourhood. Other stars also call this neighbourhood home. But what’s the neighbourhood’s history? What triggered the birth of all those stars?

A team of astronomers say they’ve pieced the history together and identified the trigger: a series of supernovae explosions that began about 14 million years ago.

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Parker Solar Probe Flies Through the Sun’s Outer Atmosphere for the First Time

For the first time ever, a spacecraft has flown through the Sun’s outer atmosphere. The Parker Solar Probe passed through the out portion of the Sun’s corona in April of 2021, passing directly through streamers of solar plasma.

And by the way …. there’s video of what the spacecraft “saw.”

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This Incredible Photo of the Sun is Made up of 150,000 Individual Photographs

You’re looking at a 300-megapixel photo of our Sun. Astrophotographer Andrew McCarthy used a specially modified telescope, taking over 150,000 individual photos and combing them into this magnificent image.

“It took about 10 hours to stack all the data, and another 3-4 hours to get it from a raw stack to the final image,” McCarthy said via email.

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When the Sun Dies, Earth’s Magnetosphere won’t Provide Protection any More

The Earth’s magnetic field is an underappreciated wonder of the natural world.  It protects our atmosphere, provides some of the most breathtaking scenery when it creates auroras, and allows people to navigate from one side of the world to the other.  Unfortunately, it won’t be able to save us from the death of the Sun though.  At least that’s the finding of some new research by Dr. Dimitri Veras of the University of Warwick and Dr. Aline Vidotto of Trinity College Dublin.

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Researchers Discover the Source of the Sun’s Most Dangerous High-Energy Particles

Sometimes the sun spits out high-energy particles which slam into the Earth, potentially disrupting our sensitive electronics. New research has found that these particles originate in the plasma of the sun itself, and are trapped there by strong magnetic fields. When those fields weaken, the particles blast out.

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Space Missions are Building Up a Detailed Map of the Sun’s Magnetic Field

Solar physicists have been having a field day of late.  A variety of missions have been staring at the sun more intently ever before (please don’t try it at home).  From the Parker Solar Probe to the Solar Orbiter, we are constantly collecting more and more data about our stellar neighbor.  But it’s not just the big name missions that can collect useful data – sometimes information from missions as simple as a sounding rocket make all the difference.  

That was the case for a group of scientists focused on the Sun’s chromosphere, the part of the suns’ atmosphere between the photosphere and the corona that is one of the least understood parts of the star.  Now, with data collected from three different missions simultaneously, humanity has its first layered view of how the sun’s magnetic field works in this underexplored zone.

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