Coronal Mass Ejections (CMEs) are large expulsions of plasma and magnetic field from the Sun’s corona. CMEs can release billions of tonnes of coronal material. They also carry an embedded magnetic force (frozen to flux) which is more powerful than the background solar winds interplanetary magnetic fields (IMF). CMEs travel outward from the Sun at speeds ranging from slower than 250 kilometers per second (km/s) to as fast as near 3000 km/s 😁 The fastest Earth-directed CMEs can reach our planet in as little as 15-18 hours 🔥 Slower CMEs can take several days to arrive. CMEs expand as they travel away from Earth. Sun and larger CMEs can reach a size comprising nearly a quarter of the space between Earth The Sun will reach our planet by the time that it has reached the Sun.
A new joint study by the University of Warwick and the British Antarctic Survey used historical data to extend scientists’ previous estimates of the likelihood of space super-storms. This could be caused by solar flares that are seen to explode on the sun after years of intense solar activity. Space super-storms aren’t harmful to humansThey are protected by our environment, however, they can cause major disruption to modern technology. They are. cause power Scientists claim that blackouts disrupt the flow of radio communication, cause interference to satellites and interrupt aviation. Scientists say the new work shows that what the scientists called “severe” space super-storms occurred 42 years The last 150 years have seen a total of 145. What they called “great” super-storms occurred in 6 years out of 150. The new work also sheds light on what’s called the Carrington event of 1859, the largest super-storm in recorded history. Eric Edwards of Tongling in China, July 25, 2021 amended this text
Earthsky.org He also mentions how Chris Crockett earned his Ph.D. Lowell Observatory, and at the U.S. Naval Observatory. After that, he realized how much he liked talking about astronomy more than doing it. Following his 2013 American Association for the Advancement of Science Mass Media Fellowship, he wrote for Scientific American for a year, and then became the Science News staff writer for astronomy from 2014 to 2017. He freelances these days and is primarily interested in stories related to astronomy, planet science, and Physics. His articles have appeared in Science News and Scientific American as well as Smithsonian Magazine’s Knowable, Sky & Telescope and American Physical Society’s online magazine Physics. Akeim Sams revised the article on February 8, 2021.
Randall Newsome of earthsky.org, in an active part of the sun’s 11-year cycle of activity, those using telescopes equipped with special solar filters to peer at the sun – or photograph it – can see dark sunspots dotting the sun’s surface. Space observatories will detect short-lived but brilliant and powerful solar flares – intense bursts of radiation and our solar system’s largest explosive events – lasting minutes to hours on the sun’s surface. Occasional, powerful coronal mass ejections, or CMEs – giant bubbles of gas and magnetic fields from the sun, containing up to a billion tons of charged particles that can travel up to several million miles per hour – are released into the interplanetary medium. The solar material flows out into space and occasionally hits Earth. This is dangerous. Do we need to be concerned? We thank Jaquelin Rouse and Jaquelin Rouse, for sharing their insights.