Strange volcanos called kimberlites bring diamonds up from Earth's depths. Scientists have always struggled to understand why they switched off millions of years ago – but perhaps they didn't.Read more
Efforts to extend our lifespan continue and many look promising, but success will have unintended consequences, says Nobel prizewinner Venki Ramakrishnan.Read more
Most physicists believe that only a quantum theory of gravity can fully explain mysteries of the universe like dark matter, but now an idea called "post-quantum gravity" is demonstrating an alternative approach.Read more
The heating elements in vapes can release toxic metals. Now an analysis of cannabis vaping liquids shows metals like lead are present at dangerous levels – even before the vape is used.Read more
From solar power stations in space to stabilising melting glaciers, some researchers are proposing extremely ambitious and risky projects to fight climate change. Could they work?.Read more
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