BBC Radio 2 has named Stirling as this year's location for its flagship live music festival.
Blockchain allowed people to guarantee the fidelity and security of a record of data without the need for a third party to ensure accuracy.
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While they fly around the far side of the Moon, the crew will have three hours dedicated to lunar observation - to gaze, take images and to study its geology, which will help plan and prepare for a future landing at the Moon's south pole.
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