Check out this incredible footage of the solar wind streaming from our Sun, captured by the ESA/NASA Solar Orbiter. This exciting video shows how particles from the Sun move through space, thanks to the Metis instrument. Metis is a coronagraph, which means it blocks out the bright light of the Sun to reveal its fainter features, especially in the corona, the Sun’s outer atmosphere.
A recent study highlighted these findings in The Astrophysical Journal. The researchers noted, “We observed a striking helical structure extending from 1.5 to 3 solar radii that lasted over three hours.” This is noteworthy because it directly shows the long-duration outflow of Alfvénic solar wind into the heliosphere, something not seen before.
The solar radius is about 432,690 miles (696,347 kilometers), which means this structure reached up to 1,298,070 miles (2,089,041 kilometers) into space—pretty massive!
This video was recorded on October 12, 2022, and it shows just how unique Metis is. According to ESA, it’s the only instrument that can detect such faint details of the solar wind. The Solar Orbiter has been capturing all sorts of fascinating phenomena; for instance, it recently recorded tiny jets emerging from the Sun’s South Pole.
The solar wind continually strikes Earth, influencing things like auroras in our skies. By studying the solar wind at its source, scientists can gain insights into these particles as well as the Sun’s corona, which generates them.
The Solar Orbiter is set to remain active until at least 2026, but there are plans to extend its mission into 2030. This means we can expect even more exciting discoveries about our Sun in the near future.
Recent studies show that understanding solar wind is vital. For example, during high solar activity, increased solar wind can affect satellite communications and power grids. The National Oceanic and Atmospheric Administration (NOAA) frequently monitors this activity to predict space weather events. So, keeping an eye on the Solar Orbiter’s findings is important for both scientists and everyday technology users alike.
As social media buzzes with excitement over these discoveries, people are becoming more aware of our Sun and its impact on Earth. It’s a perfect example of how space exploration continues to connect us with the universe.
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ESA,NASA,Solar Orbiter,Solar wind,the Sun