Stunning highlights from the 2021 Siena International Photo Awards

From skydiving over the pyramids of Egypt to having fun at the North Pole, this year’s Siena International Photo Awards spans all corners of the globe. Here is a handpicked selection of the highlights from this year’s spectacular crop of winners.

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Microbes could be used to make rocket fuel on Mars

A team at the Georgia Institute of Technology have come up with a concept that would see bacteria shipped to Mars produce rocket fuel and liquid oxygen from atmospheric CO2 to power a spacecraft on its return journey to Earth.

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Polydrops tugs its electric polyhedral teardrop trailer off road

Polydrops pushed its distinctive angular trailer lineup off-grid earlier this year with a self-sufficient teardrop. Now it's venturing even farther into the wild with the new P17X Explorer, a ruggedized off-road trailer.

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