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Space
Space
Science
Maximilian Dröllner

A 'cosmic clock' in tiny crystals has revealed the rise and fall of Australia's ancient landscapes

This stunning space wallpaper shows the youngest-known supernova remnant in our galaxy, which lies 10,000 light years away in the constellation Cassiopeia. The light from this exploding star first reached Earth in the 1600s.

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights.

Australia's iconic red landscapes have been home to Aboriginal culture and recorded in songlines for tens of thousands of years. But further clues on just how ancient this landscape is come from far beyond Earth: cosmic rays that leave telltale fingerprints inside minerals at Earth's surface.

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