Covid-19 is a wake-up call to stop abusing the ecosystems we depend on
17 February 2021
Our assault on nature has led to a crisis similar in magnitude to climate change – and one that no government, business or individual can afford to ignore
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Premium
How archaeologists are using futuristic tech to uncover ancient cities
17 February 2021
The secrets of long-lost metropolises are finally being revealed thanks to data archaeology. We could even learn more about why cities die out, writes Annalee Newitz
Two coronavirus variants have merged – here's what you need to know
17 February 2021
A single genome sequence has shown that the UK and California variants of the coronavirus have combined into a heavily mutated hybrid. Here’s what you need to know about this recombinant variant of the coronavirus
What do the new coronavirus variants mean for a return to normality?
17 February 2021
With news of one new variant after another, it's easy to despair that even vaccines won't be enough to overcome the coronavirus pandemic - but there are reasons to be optimistic
Insect brains will teach us how to make truly intelligent robots
16 February 2021
We need a revolution in artificial intelligence and learning from insects will help us achieve it, says James Marshall
Physicists finally worked out why ice is slippery after 150 years
16 February 2021
We may finally have an answer to the question of why ice is slippery after 150 years: a layer of dancing molecules on its surface
Chimpanzees seem to 'speak' in sentences of three or more calls
15 February 2021
The ability to combine multiple words to create new meanings is thought to be unique to humans, but a study of chimp calls hints that it isn't
Sunlight could power micro-aircraft flying above the stratosphere
12 February 2021
The mesosphere – the atmospheric layer 50 to 80km above the ground – is out of bounds to normal aircraft, but millimetre-sized devices could fly there powered by sunlight
England's quarantine hotels won't stop spread of coronavirus variants
12 February 2021
Decision that visitors to England from some countries must quarantine in hotels ignores scientific advice for mandatory quarantine of all visitors, making it unlikely it will stop the spread of new coronavirus variants
NASA is about to land a helicopter on Mars that might glow in the dark
12 February 2021
NASA's Perseverance rover is due to touch down on Mars on 18 February, and it is carrying the first helicopter to attempt a flight on another planet. Now it seems the tiny drone may also glow in the dark when it flies
