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Home»World»Nasa’s Parker Solar Probe attempts closest ever approach to Sun
World

Nasa’s Parker Solar Probe attempts closest ever approach to Sun

December 24, 2024No Comments1 Min Read
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So why go to all this effort to “touch” the Sun?

Scientists hope that as the spacecraft passes through our star’s outer atmosphere – its corona – it will unravel a long-standing mystery.

“The corona is very, very hot, and we have no idea why,” explains Dr. Jennifer Millard, an astronomer at Fifth Star Labs in Wales.

“The surface temperature of the Sun is about 6,000C or so, but the corona, that thin outer atmosphere you see during solar eclipses, is millions of degrees – and that’s further away from the Sun. So how does this atmosphere get hotter?”

The mission should also help scientists better understand the solar wind, the constant stream of charged particles that are ejected from the corona.

When these particles interact with the Earth’s magnetic field, the sky is lit up with dazzling auroras.

But this so-called space weather can also cause problems, knocking out power grids, electronics and communications systems.

“Understanding the Sun, its activity, space weather, solar wind is very important to our daily life on Earth,” says Dr. Millard.



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