Metallic hydrogen would be the ultimate fuel - if we can make it
1 January 2020
The universe’s most common element could also be its most wondrous. Two different groups of researchers say they've made it - but can either claim withstand scrutiny?
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Premium
Are dark matter and dark energy related in anything apart from name?
1 January 2020
There is no law of physics dictating that dark matter and dark energy can’t be connected, and it is natural to wonder about it, writes Chanda Prescod-Weinstein
Tiny graphene sheets can start or stop ice crystals growing in water
18 December 2019
Graphene particles that seed ice formation in water only need to be 8 square nanometres to kick-start the freezing process – any smaller and they can stop ice forming
