Science, Space and Technology News 2024
A substantial coronal mass ejection, or CME, blew out from side of the Sun, giving us a great view of the event in profile . NASA’s Solar Dynamics Observatory caught the action in the 304 Angstrom wavelength of extreme ultraviolet light. The video clip covers about four hours of the event. While some of the plasma falls back into the Sun, a look at the coronagraph on SOHO shows a large cloud of particles heading into space.
Advancements such as this one could make a huge difference in helping to protect infrastructure that is vital to our everyday lives, according to researchers at Aberystwyth University, who will present their findings on July 19 at the Royal Astronomical Society’s National Astronomy Meeting in Hull. “By measuring how the strength of the magnetic field decreases with height, we can determine this critical height,” said lead researcher Harshita Gandhi, a solar physicist at Aberystwyth University.
The different stages of a coronal mass ejection, from onset , to post-eruption and travel towards objects like Earth in our solar system . Credit: Temmer et al. 2021“This insight allows us to predict the CME’s speed and, consequently, its arrival time on Earth, even before the CME has fully erupted.”
This requires knowing a more accurate speed of the CME shortly after it erupts from the Sun to better provide advance warnings of when it will reach our planet.Accurate speed predictions enable better estimates of when a CME will reach Earth, providing crucial advance warnings.
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