Newspaper article The Journal (Newcastle, England)

Shining a Light on Our Sun; New Research Will Help Future Astronauts Explore Our Galaxy

Newspaper article The Journal (Newcastle, England)

Shining a Light on Our Sun; New Research Will Help Future Astronauts Explore Our Galaxy

Article excerpt

Byline: Craig Thompson Reporter

ASTRONAUTS could one day tune in to the morning's space weather report to see whether they should take that trip to Mars, thanks to research led by Northumbria University.

Looking forward, if humankind is to regularly engage in space tourism, asteroid mining or manned trips to other worlds, then travellers will be exposed to the elements once they leave the safety of Earth's protective magnetic field.

New research published in the journal Nature Communications this month has revealed for the first time that magnetic waves travelling across the Sun's surface can accelerate solar winds.

With wind speeds varying between a gentle 500,000 miles per hour to a gusty two million miles per hour, the Sun's supersonic wind power could prove hazardous to satellites and space travellers moving outside of the Earth's barrier. Dr Richard Morton, Leverhulme Trust Early Career Research Fellow in Northumbria's Department of Mathematics and Information Sciences, used state-of-the-art solar telescopes to observe the outer most layer of the Sun's atmosphere to assess how the Sun influences weather in space.

His team, which includes researchers from the National Centre for Atmospheric Research (NCAR) and the Research Institute in Astrophysics and Planetology, used combined data from a telescope based in Hawaii and NASA's solar satellite to investigate powerful magnetic waves, known as Alfven waves, where the Sun's wind originates.

Their research revealed that the magnetic waves travel in both direc-tions along the Sun's magnetic field. This leads to an interaction between the oppositely directed waves, which allows the energy they carry to be broken down and accelerate the solar wind.

Theorists had predicted this feature of the waves, but this was the first time it has been proved.

Dr Morton said that space weather originating from the Sun could cause changes in geo-magnetic activity around the Earth, affecting power networks, satellites and computer systems.

"The solar wind is unlike anything experienced on Earth," said Dr Morton.

"It is an extremely fast moving stream of million-degree gas that carries away up to a billion kilograms of the Sun's atmosphere per second. …

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