Science
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Scientists say there are signs of humans having a subconscious magnetic sense -
Cambridge researchers grew ‘organoid’ that spontaneously connected to spinal cord
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Fireball over Kamchatka peninsula in December went largely unnoticed at the time -
Australian researchers believe it is the oldest viable stored semen of any species in the world -
Greek historian’s description of ‘baris’ vessel vindicated by archaeologists at sunken city of Thonis-Heraclion
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Bill Giles calls on broadcasters to add slot explaining humans’ impact on climate -
Public health campaign triggers surge in numbers attending cervical screenings at ‘worst possible time’ -
Key issues
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The Observer New Review offers you the chance to quiz the superstar physicist on time, space or anything in between
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Letters: Prof Joe Smith, director of the Royal Geographical Society, Prof Sir David Cannadine, president of the British Academy, and Prof Norman Gowar respond to a Guardian editorial -
Without an exit deal with the EU, the whole NI agricultural industry will be destroyed, says president of the Ulster Farmers’ Union Ivor Ferguson -
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The answers to today’s Jedi language puzzle -
A Jedi language puzzle -
Answers to today’s kinship riddles -
Test your ken about kinship
Multimedia
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Happy International Pi Day. To celebrate, Hannah Devlin is joined be mathematician and comedian Matt Parker to discuss maths anxiety and number crunching -
Memory does not work like a video tape – it is not stored like a file just waiting to be retrieved. Instead, memories are formed in networks across the brain and every time they are recalled they can be subtly changed. So if these memories are changeable, how much should we trust them?
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SpaceX's new crew capsule returned to Earth on Friday, ending its first test flight by splashing down successfully in the Atlantic Ocean
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In the second episode of Five Minute Masterminds, the author and broadcaster Timandra Harkness introduces big data, explaining how big it actually is, its impact on recent political elections and how it can change your life
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SpaceX Crew Dragon docks at the International Space Station after a 27-hour journey from Florida which began on Saturday
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A successful SpaceX spacecraft launch brings US plans to resume sending people into space in own spacecraft closer
Starwatch A supermoon to celebrate the vernal equinox