Videos Taken By NASA Probe Show The Sun As You’ve Never Seen It

March 26the Solar Orbiter spacecraft, operated by European Space Agency (ESA) in partnership with NASA, has come closer to the solar corona than ever before. At the point in their orbit closest to our star, known as perihelion, all 10 instruments operated simultaneously, working together to collect important and never-before-seen data.

Mercury, the nearest planet, is more than 57 million km from the Sun. Solar Orbiter has come even closer, less than 48 million kilometers from our host star, from where it could be observed as never before in history.

For the first time, the entire Sun has been recorded, including its poles, which are often difficult to observe due to the Sun’s vantage point. Earth in orbit around the solar equator.

A NASA probe has recorded hard-to-reach areas on the Sun

The polar regions are believed to be extremely important for the Sun’s magnetic fields, which play a vital role in solar activity. However, because the poles are so hard to see, we don’t know what happens to the magnetic fields in those areas.

With its complex array of instruments, Solar Orbiter offers unprecedented insight into these enigmatic regions. Two films made by the probe have been released by NASA. The first, recorded the day after perihelion, and the other, four days later.

This first movie highlights both full-length images of the disk, taken by the probe’s Full Sun Imager (FSI) telescope, and detailed images of a smaller region, taken using the High Resolution Imager telescope. (HRIEUV). It is possible to see the coronal bands strongly excited by solar activity.

The film then approaches the HRIEUV target region, where smaller scale coronal loops can be seen. According to NASA, the color was artificially added because the original wavelength detected by the instrument is invisible to the human eye.

In the second film, the spacecraft spotted a fascinating and mysterious feature of our star known as the “hedgehog,” which astrophysicists still haven’t figured out exactly what it is or how it formed. . It is only known that it exists and occupies an area of ​​about 25,000 km in diameter.

Images captured in the extreme ultraviolet by Solar Orbiter, at a wavelength of 17 nanometers, finally succeeded in revealing its activity. And what activity: Spikes of extremely hot and cooler gas are shooting out in all directions from the solar corona, showing the strength of its magnetic field.

Read more:

The solar wind exceeds the orbit of Pluto

According to Science Alert, the main purpose of the Solar Orbiter spacecraft is to help scientists understand the effect of the Sun on the entire heliosphere, or the solar sphere of influence defined by the solar wind, whose border pass from the orbit of Pluto. This solar wind blows particles and gases into interplanetary space, mixing with the planets with tangible effects.

The closer it gets to the Sun, the better it will be able to show scientists how the solar wind blows. Just before reaching perihelion on March 21, the spacecraft detected a stream of energetic particles, and even at this distance the sighting was eye-opening.

The most energetic particles arrived first, followed by the less energetic ones. This suggests that the particles were not produced near Solar Orbiter’s position, but near the Sun’s surface.

Starting in 2025, Solar Orbiter will use Venus’ gravitational pull to gradually increase the inclination of its orbit. This will allow the spacecraft’s instruments to study the solar poles from a more top-down perspective.

Have you watched the new videos on Youtube digital look? Subscribe to the channel!

Leave a Comment