Asteroid hit the moon and flung rocks 120 kilometres from the crater
Researchers have watched a huge crater form on the lunar surface, and its widespread effects could help inform future exploration of the moon and other similar places
New Scientist
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Earth is getting less dusty – which is both good and bad
The amount of dust in the atmosphere has fallen, which is good for our lungs, but is a loss for ecosystems that depend on wind-borne nutrients
T. rex teeth show the enormous predatory dinosaur was warm-blooded
Analysis of the chemistry of ancient T. rex tooth enamel adds weight to the idea that the fierce Cretaceous predator controlled its body temperature
Why it is time to restate the case for the importance of research on animals
Recent progress on alternatives to animal testing is hugely welcome. But talk of "phasing out" animal research completely is misleading and could even be dangerous to scientists
Why don’t dogs look up when a low-flying plane passes overhead? part 4
Yet more readers share their insights from their own four-legged friends – and one proposes a more general theory
Emily St. John Mandel is back with a stunning sci-fi trip to a parallel world
Exit Party opens in a near-future Los Angeles just out of curfew, where two women attend a party that gets stranger by the minute. Welcome to Station Eleven author Emily St. John Mandel’s latest, says sci-fi columnist Emily H. Wilson
Twisteddoodles masters the universe
This week's cartoon from Twisteddoodles
Why can’t we cool water as quickly as we can heat it?
Our readers send in their thoughts – and one reveals they hold a Guinness World Record
Do olfactory illusions exist, similar to optical and audio illusions?
Readers sense this type of illusion does exist – and send in their personal experiences
This week’s new questions
If every ship on the planet were hauled out of the water, how much would global sea levels change, and how quickly? How different would Earth be if anaerobic life were the only life form, and could it have become sentient?
Tom Gauld excludes an outlier from the study
Tom Gauld weekly cartoon
Satellite data gives clearer picture of how ice sheets are losing mass
The longest satellite record ever compiled shows the vast majority of ice loss from Greenland and Antarctica is due to glaciers flowing faster, rather than warmer air temperatures melting them at the surface
What is the most-used Beatles song in academic paper titles?
Feedback enjoys a new piece of research delving into papers whose titles mention Beatles songs – but wonders if there is an ulterior motive at work for those who pulled it together
How older siblings may shape sexual orientation via mother’s immune system
It has long been observed that men with older brothers are more likely to be gay, but an association has also been found with older sisters. This sheds further light on how a mother's immune system may be involved in shaping sexual orientation
Human organoids restore cognition in mice with half a brain
Mice with half a brain experienced significant improvements in their cognition and movement when they received brain organoids made from human stem cells
Xand van Tulleken on the 3 wellness trends to be most wary of
The wellness boom has brought a wide array of consumer products that promise to boost your health and happiness. Xand van Tulleken has delved into it all and explains how to think about the evidence behind the hype
Humpback whale mother with stillborn calf shows ‘grief-like’ behaviour
For the first time, researchers have seen a humpback mother interacting with her stillborn calf, reporting that she stayed close to it for at least two days
Why The Ambidextrous Universe is a masterpiece of science writing
Don’t read The Ambidextrous Universe unless you are serious about maths and physics, because Martin Gardner is very happy to make his readers work – to enthralling effect, says Jacklin Kwan
Nuclear fusion experiment produces the brightest X-rays on Earth yet
A new twist on nuclear fusion ignition emitted X-rays that are as bright as some stars, which could enable other extreme experiments
Wild chimpanzees teach youngsters by handing them tools
Adult chimpanzees have been observed passing tools to their younger relatives, helping them learn the skills needed for fishing for ants or algae