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The best astrophotography of 2021

By Australian Geographic • 3 August 2021

Image credit: © Marley Butler

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These photographs of space are like nothing you’ve seen before.

EACH YEAR, world-renowned astrophotographer, Dr David Malin judges the entries from the Central West Astronomical Society’s annual astrophotography competition, and each year, the competition doesn’t disappoint.

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Before species go extinct, their populations often shrink and become isolated. Healthy populations tend to have a large gene pool with many genetic variants circulating. But the path to extinction erodes genetic diversity, because a species’ gene pool shrinks as the population declines. Losing genetic diversity limits the ability of populations to adapt to threats such as disease and climate change.

Notes from the field: At home underwater

Sheree Marris' impressive career and passion for marine wildlife made her the natural choice to write and photograph our feature article about octopus brains.