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Showing posts with the label SATELLITES

Solar storms that caused pretty auroras can create havoc with technology — here’s how

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At the weekend, millions of people around the world were treated to a mesmerising display of the aurora borealis and aurora australis, better known as the northern and southern lights. The lights, usually seen in crown-like regions surrounding the Earth’s poles, were pushed to mid-latitudes by heightened activity from the Sun. The same geomagnetic storms causing the auroras can cause havoc with our planet’s human-made infrastructure. These storms, caused by high energy particles from the Sun hitting our atmosphere, have the potential to knock out electrical grids and satellites. So what were the impacts of this recent burst of stormy s...... Read Full article on HadNews

Satellites are burning up in the upper atmosphere – and we still don’t know what impact this will have on the Earth’s climate

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Elon Musk’s SpaceX has announced it will dispose of 100 Starlink satellites over the next six months, after it discovered a design flaw that may cause them to fail. Rather than risk posing a threat to other spacecraft, SpaceX will “de-orbit” these satellites to burn up in the atmosphere. But atmospheric scientists are increasingly concerned that this sort of apparent fly-tipping by the space sector will cause further climate change down on Earth. One team recently, and unexpectedly, found potential ozone-depleting metals from spacecraft in the stratosphere, the atmospheric layer where the ozone layer is formed. The relative “low ear...... Read Full article on HadNews