NASA ready for trip to the sun

JOHANNESBURG - NASA says it's ready for a historic trip to the sun this weekend.

The journey, called the Parker Solar Probe, will loop around the sun 24 times, flying within the star's hot million-degree atmosphere.

This will be within 6 million kilometres of the sun's surface, closer than any other spacecraft has been before.

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Through this mission, NASA is hoping to solve decades-old mysteries around what accelerates the solar winds that affect Earth and other planets.

The entire project cost R20.5-billion and will continue until 2025.