This guide from Nasa explains what happens when the powerful magnetic fields in and around the sun reconnect, which could lead to a "solar superstorm".
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Wednesday will be a cloudy but mild day across southern England and Wales with outbreaks of rain
A diplomat from the North Korean embassy in Kuala Lumpur is being sought over the death of Kim Jong-nam.
The former leader of Hong Kong Donald Tsang has been jailed for 20 months after being convicted of corruption over a luxury apartment.