- A candidate astronaut for the Mars One space-colony will be ‘making a difference’ closer to home. Dianne McGrath will appear via ZOOM as ambassador for City of Greater Dandenong’s Forever Fest on May 22-30. She’ll feature at the launch and each day of the nine-day climate-change and sustainability festival, which will be a mix of on-site and online content. Ms McGrath was ranked in the top-10 candidates – out of 200,000 applicants – for the proposed one-way trip to settle Mars. At the launch at Springvale Community Hub, there will be onsite activities such as pre-loved clothes swaps, zero-waste cooking classes and a workshop on building a bee hotel.