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Elsewhere on New Scientist
Geology rocks • The discipline needs to reinvent itself – and be accorded the respect it deserves
New Scientist
Spring comes early • Warmer temperatures in the UK due to climate change are triggering spring flowers to bloom sooner, reports Clare Wilson
Lightning records set in the Americas
Giant pandas snub their cubs • When cubs are born via artificial insemination, panda mothers are more likely to reject them
Birthday wishes on social media are a security risk
One-third of birds tested in Australia have chlamydia
Gene variant in centenarians may help keep ageing at bay
We could save Earth from a planet-killer comet (if leaders listen to scientists)
Extreme marine heatwaves are the new normal
Another flavour of omicron • The BA.2 variant of the coronavirus is spreading fast, but it shouldn’t cause another worldwide wave, says Michael Le Page
Game theory shows how people crowd on rush hour trains
Whiteflies have acquired dozens of genes from the plants they eat
An explanation for the different blues of Uranus and Neptune
Hibernating ground squirrels recycle urine to survive
Google moves to drop cookies • Privacy concerns have pushed the web giant to change how it tracks us online, explains Matthew Sparkes
We ‘click’ better in conversations with quick responses
Gravitational wave echoes could reveal dark matter
Fossil skull may be Denisovan • Denisovan humans lived in east Asia during the Stone Age, and ancient bone fragments might give us our first glimpse of one of their skulls, finds Michael Marshall
Some bee colonies have to kill thousands of wannabe queens
First intergalactic supernova remnant may have been seen
Field notes Environment • How to clean up a river A partnership between farmers, the water industry and local volunteers may provide the answers to a river pollution crisis in England, finds Adam Vaughan in Oxfordshire
Cocktail of chemicals allows frogs to regrow lost limbs
Older adults boosted by vitamin D tablets
Cancer drug could be way to clear out HIV
Really brief
Mysterious signal beaming from afar
Robot gets to grips with delicate intestinal surgery
Home is where the magnetic field tilts
Saving the reefs • Coral gardening projects are more popular than ever, but they are a distraction from the real solutions, says Catherine Collins
This changes everything • The robo car uprising Numbers of self-driving vehicles are going up rapidly in California. It is a trend that might just lead to some unexpected outcomes, writes Annalee Newitz
Gone south
Your letters
Climate fiction’s call to arms • So-called cli-fi is galvanising readers into action with dark, yet all-too-possible futures. Bill McGuire picks some of the best
How stuff works • To know our future, we need to focus on understanding the world we live in now, finds Simon Ings
Don’t miss
The games column • What’s new for 2022 This year sees a good haul of new games, with post-apocalyptic adventures, zombies, aliens and a little light relief thanks to a puzzle-solving cat, says Jacob Aron
Quantum perspective • Our efforts to see reality from multiple points of view at once are revealing the strange part we all play in...