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Map pollution and make a world record? Join in 21 June!

Updated: Jun 18, 2020

On the darkest day of the year, 21st June, the Australasian Dark Sky Alliance is coordinating a thousands of people to map light pollution around the world.

What do you need to do to be a part of this great challenge?

Sign up - the earlier you do this the better. Weekly they're giving prizes away and tips for the event to registrants.

  • Sign in - 21 June, 11am AWST

  • Watch some videos, answer all 5 questions, and do a night sky observation (it’s important to still take part even if it’s cloudy or raining).

  • Finish all parts of the lesson within 24 hours.

There are two kinds of registration. Participate for free, or pay the small fee of $3.00 AUD to participate, receive an official certificate, and go in the draw to win prizes.

Head to to find out more and register.

We thank International Centre for Radio Astronomy Research and the University of Western Australia for contributing this information. We acknowledge that this content has not been altered from the original intent of the author.

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