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    • By European Space Agency
      Video: 00:00:11 Solar Orbiter has spotted a ‘tube’ of cooler atmospheric gases snaking its way through the Sun’s magnetic field. The observation provides an intriguing new addition to the zoo of features revealed by the ESA-led Solar Orbiter mission, especially since the snake was a precursor to a much larger eruption.
      The snake was seen on 5 September 2022, as Solar Orbiter was approaching the Sun for a close pass that took place on 12 October. It is a tube of cool plasma suspended by magnetic fields in the hotter surrounding plasma of the Sun’s atmosphere.
      Plasma is a state of matter in which a gas is so hot that its atoms begin to lose some of their outer particles, called electrons. This loss makes the gas electrically charged and therefore susceptible to magnetic fields. All gas in the Sun’s atmosphere is a plasma because the temperature here is more than a million degrees centigrade.
      The plasma in the snake is following a particularly long filament of the Sun’s magnetic field that is reaching from one side of the Sun to another.
      “You're getting plasma flowing from one side to the other but the magnetic field is really twisted. So you're getting this change in direction because we're looking down on a twisted structure,” says David Long, Mullard Space Science Laboratory (UCL), UK, who is heading up the investigation into the phenomenon.
      The movie has been constructed as a time-lapse from images from the Extreme Ultraviolet Imager onboard Solar Orbiter. In reality, the snake took around three hours to complete its journey but at the distances involved in crossing the solar surface that means the plasma must have been travelling at around 170 kilometres per second.
      What makes the snake so intriguing is that it began from a solar active region that later erupted, ejecting billions of tonnes of plasma into space. This raises the possibility that the snake was a sort of precursor to this event – and Solar Orbiter caught it all in numerous instruments.
      For the spacecraft’s Energetic Particle Detector (EPD), the eruption was one of the most intense solar energetic particles events detected so far by the instrument.
      “It's a really nice combination of datasets that we only get from Solar Orbiter,” says David.
      More intriguing still is that the plasma from this eruption, known as a coronal mass ejection, happened to sweep over NASA’s Parker Solar Probe, allowing its instruments to measure the contents of the eruption.
      Being able to see an eruption take place and then sample the ejected gasses, either with its own instruments or those of another spacecraft, is one of Solar Orbiter’s principal scientific aims. It will allow a better understanding to be developed of solar activity and the way it creates ‘space weather’, which can disrupt satellites and other technology on Earth.
      Solar Orbiter is a space mission of international collaboration between ESA and NASA, operated by ESA. It launched on 10 February 2020, and earlier this month celebrated its 1000th day in space.
      View the full article
    • By Amazing Space
      Stunning view of the Sun from @NASA Solar Dynamics Observatory #shorts
    • By European Space Agency
      Video: 00:00:07 The ESA-led Solar Orbiter mission arrives at its next close approach to the Sun on 12 October 2022 at 19:12 UTC (21:12 CEST). This sequence of images shows the progress of the ESA/NASA spacecraft as it heads inwards on its voyage of discovery. The sequence begins on 20 September and finishes on 10 October.
      The sequence was taken by the Extreme Ultraviolet Imager (EUI) using the Full Sun Imager (FSI) telescope, and shows the Sun at a wavelength of 17 nanometers. This wavelength is emitted by gas in the Sun’s atmosphere with a temperature of around one million degrees. The colour on this image has been artificially added because the original wavelength detected by the instrument is invisible to the human eye.
      So much of modern society relies on spacecraft in orbit around Earth to provide essential communications and navigation. Understanding more about the Sun and the ‘space weather’ it generates will help companies operate their satellites around Earth safely and securely.
      Towards the end of the sequence, the image appears to jump slightly. This happens on the days that EUI was not returning data to Earth. The coloured bar at the top of the image shows the impressive amount of data collected in this period, together with these brief gaps in the data coverage.
      Depending on where Solar Orbiter is along its orbit, it can take days or weeks for the data it records to be transmitted back to Earth. Data from the current perihelion passage is downlinked within a couple of weeks of it being collected.
      View the full article
    • By USH
      In recent weeks, many strange UFO-like objects have been observed by the various solar satellites. 

      Besides hexagon and circular objects, a huge rectangular craft with possible docking station for incoming and outgoing smaller UFOs at the rear of the mothership has been caught at the moment it passing the sun. 
      The video show some of these possible alien craft.
        View the full article
    • By European Space Agency
      We all wish that we could sometimes see into the future. Now, thanks to the very latest data from ESA’s star mapping Gaia mission, astronomers can do just that for the Sun. By accurately identifying stars of similar mass and composition, they can see how our Sun is going to evolve in the future. And this work extends far beyond a little astrophysical clairvoyance.
      View the full article
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