Editor's note

16p11.2 deletion or duplication is a rare syndrome which occurs in three out of every 10,000 people. While it has previously been linked to a higher risk of autism, now the largest study of psychiatric conditions in children who have the syndrome has uncovered they also have a higher risk of other mental health problems too. Maria Niarchou and Marianne van den Bree explain their research.

NASA’s New Horizon mission recently became the first spacecraft to visit a small object in the Kuiper Belt, a donut-shaped region of icy bodies beyond Neptune. Now scientists have discovered that bodies like it are actually quite rare – there’s a mysterious lack of small objects in the region. David Rothery argues the new study is ingenious, helping to shed light on the evolution of the solar system.

We know by now that disagreement over the Irish border is the intractable issue holding up Brexit. But there’s another sticky question that could cause just as much trouble in the next stage of negotiations. What will happen to Gibraltar after the UK leaves the EU? The rock has a land border with Europe and relies heavily on ties with Spain for economic security. It is not in the customs union but is in the single market. It’s all going to be quite difficult to resolve.

Ruth Dawson

Wales Editor

Top stories

andriano.cz/Shutterstock

16p11.2: rare genetic changes linked to autism now connected to higher chance of other psychiatric disorders

Maria Niarchou, Cardiff University; Marianne van den Bree, Cardiff University

16p11.2 deletion or duplication syndrome occurs in three out of every 10,000 people.

Where are the smallest of the icy worlds we thought resided in the Kuiper belt? ESO/Flickr

There are missing objects at the fringe of the solar system – new study puzzles astronomers

David Rothery, The Open University

There's a mysterious lack of small bodies beyond Neptune, but a 'snowman-shaped' object may help explain why.

shutterstock. Shutterstock

Gibraltar after Brexit: why Spain, not Ireland will decide the UK’s fate

Marius S. Ostrowski, University of Oxford

Plans for the Irish border come in to force after Brexit. But there is no plan for the rock after that date.

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