Each of these 'tiny' threads of blazing-hot plasma on the sun is 125 miles wide

The sun, like all stars, is a roiling mass of superhot charged particles called plasma. But it's not the most conducive to close study by puny humans, because of its extreme heat and brightness.

As scientists develop techniques to see higher and higher resolution views of the sun, they have wondered whether at some point they will see the sun's intricate structure will disintegrate into a soupy mess.

According to new research, scientists aren't there yet. Researchers obtained the highest-resolution images to date of the sun's corona, or outer atmosphere, using NASA's High-Resolution Coronal Imager, or Hi-C. In those images, scientists were able to identify strands of plasma just 125 miles (200 kilometers) across, according to a NASA statement. (That sounds vast, but remember that the sun is about 865,000 miles, or 1.4 million km across.)

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(Image: NASA/University of Central Lancashire)

The Hi-C telescope's view of active region 12712 on the sun, including "tiny" plasma strands 125 miles across.

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Dark plasma on the Sun

Thanks to new high-res images, physicists from the University of Central Lancashire in the UK have seen never-before-seen threads of million-degree plasma in the Sun's outer layer.

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