Food
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UK plans to 'dim the sun' gets \u00a357,000,000 funding - but what's the point?Details
How far away are we from dimming the sun?
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Skype shuts down for good today - Here's how to save your dataDetails
The iconic Skype ringtone will go quiet for good within hours.
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Alaskan volcano set to erupt and 50,000ft ash cloud could trigger international travel chaosDetails
Hundreds of thousands of Americans have been put on alert for a major volcano which could erupt anytime.
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Why radio is still the ultimate survival tool in blackouts and emergenciesDetails
'Listening to radio, these people have a tomorrow.'
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Nasa finds mysterious \u2018Skull Hill\u2019 on Mars and doesn't know where it came fromDetails
Well this is a head scratcher.
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We're now even closer to finding out if there was life on MarsDetails
'It tells us that the planet was habitable.'
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Colossal squid seen alive for first time in 100 years in stunning discoveryDetails
It had never been seen in its natural habitat – until now.
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US may 'move on' from Russia-Ukraine peace talks if there's no progress soonDetails
Trump previously claimed he could end the war between Russia and Ukraine 'within 24 hours'.