Mars closest to Earth in 15 years

On July 31st Mars will be nearing the closest it's been to Earth in 15 years. Source: AAP
Perth Stargazers will have the opportunity this evening to see Mars at its biggest and brightest for 15 years. Dr Katarina Miljkovic of Curtin University’s School of Earth and Planetary Sciences explains - Why is Mars bigger and brighter than normal this evening?
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