Science
Mixed messages: is research into human-monkey embryos ethical?
Biologists recently created a chimera with both human and monkey cells. But not all scientists are happy to blur species boundaries
Philip Ball
15, May, 2021 @3:00 PM
Weird dreams train us for the unexpected, says new theory
AI inspires hypothesis that sleeping human brain might try to break its overfamiliarity with daily data
Linda Geddes
14, May, 2021 @5:18 PM
Europe’s Jupiter spacecraft enters crucial testing phase
Critical sequence of tests begins in space simulator to prepare Jupiter Icy Moons Explorer for its journey to the great gas giant
Stuart Clark
14, May, 2021 @5:00 AM
Delay in giving second jabs of Pfizer vaccine improves immunity
Study finds antibodies against Sars-CoV-2 three-and-a-half times higher in people vaccinated again after 12 weeks rather than three
Ian Sample Science editor
13, May, 2021 @11:05 PM
A giant ‘F you’ from the Anglo-Saxons? | Brief letters
Brief letters: 14-year-old Guardian readers | Cerne Giant | ‘Painting is dead’ | Peter Mandelson | Boris Johnson
Letters
13, May, 2021 @5:42 PM
Michael Atkinson obituary
Other Lives: Professor of gastroenterology who developed the Atkinson tube, which helps people with oesophageal cancer to swallow
John Bennett
13, May, 2021 @3:26 PM
Paralysed man uses ‘mindwriting’ brain computer to compose sentences
Man, known as T5, was able to write 18 words a minute with more than 94% accuracy on individual letters
Ian Sample Science editor
12, May, 2021 @3:00 PM
Cerne Giant in Dorset dates from Anglo-Saxon times, analysis suggests
Sand samples examined by National Trust experts indicate hillside chalk figure was created in the 10th century
Mark Brown Arts correspondent
12, May, 2021 @5:00 AM
Doctors in London report fivefold increase in children swallowing magnets
Button batteries and magnets found in certain types of children’s toys associated with complications
Natalie Grover
11, May, 2021 @10:30 PM
Starwatch: your best chance of the year to see Mercury at night
Observers in the northern hemisphere can start tonight to look for the elusive target
Stuart Clark
10, May, 2021 @5:00 AM
Not cricket? Scientists suggest bamboo bats are a match for willow
Researchers create bat with similar performance from what they say is cheap and sustainable material
Nicola Davis Science correspondent
09, May, 2021 @11:01 PM
‘Irresponsible’: Nasa chides China as rocket debris lands in Indian Ocean
US agency accuses Beijing of failing to meet expected standards regarding its space debris
Reuters in Beijing
09, May, 2021 @11:28 AM
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