Nasa’s Parker solar probe attempts closest ever pass of sun

Probe was scheduled to pass 3.8 million miles from sun’s surface on Christmas Eve

Nasa’s Parker solar probe is attempting its closest ever flyby of the sun, passing 3.8m miles from its surface on Christmas Eve.

The spacecraft was scheduled to make the record-breaking approach, known as a perihelion, at 6.53am US eastern time (11.53 GMT).

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