Coronal loops, well-defined hot strands of plasma that arch out into the sun’s atmosphere, are iconic to the sun’s imagery. But many of the supposed coronal loops we see might not be there at all.

Many coronal loops — ropey strands of plasma that scientists have long thought existed in the Sun’s atmosphere — may actually be optical illusions, according to a new paper that challenges prevailing ...

Some of the most spectacular features on the Sun are its coronal loops — incandescent structures of hot plasma that arc for thousands of miles above magnetically active regions of the Sun, forming ...

NASA’s Solar Dynamics Observatory captured this image of coronal loops above an active region on the sun in mid-January 2012. The image was taken in the 171 angstrom wavelength of extreme ultraviolet ...

BOULDER, Colo. — Massive arches of plasma in the sun’s atmosphere, called coronal loops, have long been used by scientists to measure the temperature and density of our star. These features have ...

StarStuff photo of the week This spectacular image shows towering coronal loops reaching high above the Sun's visible surface. It may look like something created for a sci-fi movie but these coronal ...

Scientists have been trying to solve this mystery for decades. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest ...