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Friday, 29 July 2022

Satellites falling back on Earth due to solar flares.

 Satellites falling back on Earth due to solar flares. Scientists explain how dangerous they can be



Our sun, which has began  its 11-year cycle, is in a very active phase and many  reports cited that we will be witnessing frequent solar flares. Scientists have pointed out that these solar flares can turn out to be a real perilous and currently, they are causing several satellites to fall back on earth. Here is all that you require  to know about solar flares and how harmful they can be: 


What are solar flares?

A solar flare is an intense burst of electromagnetic radiation generated in the sun's climate. They are the largest eruptive  events in our solar system and can last for minutes or hours. 


According  a report by The Sun, around every 11 years, the magnetic field on the Sun flips. That means the north and south poles switch and this can reason the Sun to behave erratically before settling down. Once it settles, the magnetic field flips and the cycle starts again.


How dangerous they can be? 

Solar flares are bursts of radiation from the Sun that sometimes dint Earth or shoot into deep space. Earth's climate filters out most of these flares. 


However, they can still impact our tech and confuse migrating animals that rely on the magnetic field for direction. The flares can reason radio blackouts and impact satellite communications such as electric power grid, internet, mobile phones, navigation signals etc. 


The recent cause of concern is how these flares are currently harming satellite communications. 


The European Space Agency is concerned about its Swarm constellation, which measures Earth's magnetic field. Anja Stromme, ESA's Swarm mission manager, said Space.com: "In the last 5 , 6 years, the satellites were sinking about two and a half kilometers [1.5 miles] a year.


"But since December last year, they have been actually diving. The sink rate between December and April has been twenty kilometers [12 miles] per year."


“There is a lot of complex physics that we still don't totally understand going on in the upper layers of the climate where it interacts with the solar wind," Stromme added. 


"We know that this interaction reasons an up welling of the atmosphere. That means that the heavy  air shifts upwards to higher altitudes."


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