Tiny cameras fixed to the backs of beetles can stream an hour of live footage to a smartphone app. They were tested on pinacate beetles (one pictured) and death-feigning beetles (Science Robotics, doi.org/gg4295). The record-breaking heatwave that has baked Siberia for the past six months was made at least 600 times more likely because of climate change. Researchers at the World Weather Attribution initiative say it is "effectively impossible" for it to have occurred without the warming driven by human activities. Huge lasers set 15 metres beneath Earth's surface are being used to measure the planet's spin with the most precision ever. The effects of Earth's motion slightly move mirrors reflecting the lasers, which scientists use to understand how the planet rotates (Physical Review Letters, doi.org/ d4bz). This could help make GPS navigation more accurate.
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