This week's new questions
22 July 2020
How tight are the lids on food jars supposed to be, and what happens when dark matter falls into a black hole? Send us your thoughts
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Premium
This week’s new questions
27 May 2020
Just how much stuff is there? Can we estimate the quantity of matter in the observable universe? Terry Day, by email
'I like a challenge': CERN physicist on the draw of weird antimatter
27 November 2019
CERN physicist Jeffrey Hangst spends his days making antimatter. He explains why the world is safe in his hands – and why he plays in a band called Diracula
Inside the hunt for the universe's missing ingredient – dark matter
14 November 2018
Dark matter fills much of the universe, but we don't know what it is. A new detector hopes finding a theoretical particle called an axion will shed some light
Mirrored moat protects experiment searching for dark matter
20 September 2017
A vast water tank blocks unwanted particles so the XENON1T experiment in Italy can seek out elusive WIMPS – the particles that may make up dark matter
