Editor's note

Scientists believe that the Big Bang created equal amounts of ordinary matter and something called “antimatter”, which is identical to matter but has opposite charge. The trouble is that whenever antimatter meets matter they annihilate each other in a flash of light – making it a mystery how we can be here today, living in a universe entirely made of matter. Now scientists at the LHCb experiment at CERN have discovered a brand new source pumping out more matter than antimatter. Marco Gersabeck explains how it could help us solve one of physics’ greatest puzzles.

Archaeologists came up against an unlikely foe, when chocolate-maker Cadbury released an advertising campaign encouraging children to go ‘treasure hunting’ for ancient artefacts across the UK. Aside from being illegal in certain places, these academics argued that removing such artefacts without recording the finds could thwart future discoveries. Read this first hand account of how they succeeded in saving some national treasures.

After a difficult night in Brussels appealing to EU leaders for time, prime minister Theresa May must turn once again to the British parliament to reach an agreement on Brexit. Earlier in the week, May took the extraordinary decision of blaming other MPs for the Brexit impasse, saying that she, like the rest of the public, was fed up with it all. That’s all very well but now she has to convince those very same parliamentarians to find a way through. Martin Fellenz, an expert in collective decision making, appeals to everyone involved to come together to produce a solution.

Miriam Frankel

Science Editor

Top stories

The Milky Way as seen from Yellowstone National Park. Neal Herbert/Flickr

CERN: Study sheds light on one of physics’ biggest mysteries – why there’s more matter than antimatter

Marco Gersabeck, University of Manchester

A new experiment at CERN has discovered a source of asymmetry between matter and antimatter that could help explain why we are here at all.

Doonagore Castle, which Cadbury incorrectly identified as Mooghaun Fort in its ad campaign. Shutterstock.

As archaeologists, it was our duty to take on Cadbury over ads encouraging kids to dig up ‘treasure’ – and we won

Aisling Tierney, University of Bristol; Mark Horton, University of Bristol

A swift response from the heritage community prevented damage to sites of national heritage.

EPA/Chris J Ratcliffe.

Theresa May is right about one thing – it’s time politicians worked together on Brexit

Martin Fellenz, Trinity College Dublin

The prime minister was wrong to absolve herself of blame for this crisis, but a solution can only be found if parliamentarians work together.

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