Stargazing coins

Foster a fascination with the wonders of our solar system with this exciting planetary coin collection. Featuring special coloured and bimetallic (two-metal) coins in a pop-up display pack, stargazers will be over the moon with this spectacular prize.
Find out more about the collection here:

For your chance to win a planetary coin collection from the Royal Australian Mint, send us a colourful drawing of a coin you have designed for 2018 celebrating Australian astronomy.

Boxed set of coins with colourful images of planets on a dark background and titled 'Planetary coins'  Royal Australian Mint logo

How to enter

To be in the running to win this fantastic prize, send us your entry with your name, age, address and Double Helix subscriber number*. Get a parent's permission, ask them to sign each piece of paper, and then send it to CSIRO Double Helix Competitions, GPO Box 1700, Canberra ACT 2601 by 14 April 2018. Or, email your entry with your details to The best entries in each competition will win the prize.

*Don't know your subscriber number? Check the address label that came with your magazine or subscribe now.

Terms and conditions of entry

  1. To be valid, all entries must include name, address, age of entrant and Double Helix subscriber number.
  2. All entries become the property of CSIRO and will not be returned.
  3. Entering the competition assigns copyright to CSIRO.
  4. Entries will be judged on creative merit, not by chance.
  5. Age will be taken into consideration when judging.
  6. All decisions on competitions are final and will not be discussed further.
  7. Winners will be notified by mail and the names of competition winners only will be published three issues later.
  8. CSIRO shall not be liable for any damage or loss suffered in connection with any of the prizes.
  9. Any change in value of the prize between the publishing date and the delivery date is not the responsibility of CSIRO.
  10. In the case that prizes become unavailable after the publishing date, CSIRO will send an alternative prize.
  11. The closing date for this issue's entries is 14 April 2018.
  12. Competition entries must be the entrant's own work.
  13. It is the responsibility of the entrant to ensure copyright of their entry is not assigned elsewhere.
  14. Winners should allow six weeks for prize delivery.


Your privacy is important to us. CSIRO collects personal information via Double Helix competitions and other activities. CSIRO requires parental permission before accepting any personal information from children. This information will be used by CSIRO for administering these activities in accordance with their terms set out in Double Helix magazine. Personal information may be shared by CSIRO with third parties, such as designers, printers, distributors and prize suppliers, for the purpose of assisting CSIRO in providing these activities. For further details of how CSIRO will use and manage this personal information, see CSIRO's privacy policy and specific privacy collection notices in Double Helix magazine, if applicable.