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New Scientist

The galaxy is full of ‘water world’ exoplanets where life could evolve

Analysis of data from 4000 exoplanets reveals that around a third are rich in water – and many have more water than Earth

Watch 4D-printed ceramics form elaborate, shape-shifting structures

A new technique for printing ceramics in 4D could be used to make strong, complex parts for rockets and mobile phones

This AI will draw whatever you want – but it’s utterly terrible

Just type in a few words, and this AI will try to draw them. It’s good at textures and colours, but the details can get a bit mixed up

Genoa bridge collapse – what went wrong and are other bridges at risk?

A large portion of motorway bridge in Genoa, Italy has collapsed killing 38 people. Here’s what we know so far about what went wrong

Eating a low-carb diet may shorten your life – unless you go vegan too

People following low-carb diets have been found to have a higher risk of mortality, except when people shun animal fats and protein too

Oldest galaxies in the universe discovered right on our doorstep

Astronomers have previously looked for ancient galaxies by peering into the deep reaches of the universe, but it turns out they were right here all the time

Future robot swarms should copy lazy ants who let others do the work

The optimum strategy for tunnelling ants is to leave all of the digging to just a few workers. Swarms of robots could use similar techniques for clearing rubble

Including population control in climate policy risks human tragedy

Making population issues part of the world's efforts to avert climate change could cause human rights abuses including forced sterilisation, says Ian Angus

The male fish who eat their eggs because they want better babies

When male barred-chin blenny fish are unimpressed by their latest batch of offspring, they often eat them so they can start a new family as soon as possible

New mega-journal will raise the profile of African science

A new journal for Africa's scientific researchers is about to makes its debut. It could be a game changer for the continent, says Curtis Abraham

A mega-journal is launching for African science and will transform it

A new journal for Africa's scientific researchers is about to makes its debut. It could be a game changer for the continent, says Curtis Abraham

Corals on old North Sea oil rigs could help natural reefs recover

Not only are deep-sea coral ecosystems thriving on oil and gas rigs in the North Sea, their larvae may be helping repopulate damaged natural reefs

Replacing your boss with a cruel robot could make you concentrate more

A mean robot watching over you increases your focus on the most important parts of a task more than a friendly robot or even no robot at all

Why the US is worried a Russian satellite might be a space weapon

A Russian satellite has been getting closer to Earth without a clear reason and US officials are concerned that it could be a space weapon

A drug’s weird side effect lets people control their dreams

Researchers have developed the most effective technique for lucid dreaming yet, and it may allow people to fulfil fantasies and overcome nightmares and phobias

An opt-out organ donor system might actually lead to fewer transplants

England’s plans to make everyone an organ donor by default could make families less likely to give consent, perhaps leading to a fall in transplant operations

Exposure to insecticide DDT linked to having a child with autism

Although DDT has been banned for decades in many countries, exposure to its breakdown products may be influencing whether mothers have autistic babies

It’s time to embrace video games as an Olympic sport

They may compete from the comfort of a chair, but video gamers are in the mix at this year's Asian games and are on track for Olympic stardom, says Mark Zastrow

No contraceptive is perfect, but can you trust apps to stop pregnancy?

Birth control app Natural Cycles has come under fire for unwanted pregnancies, but this just reveals how little we understand contraception

Some clouds are formed when a virus makes algae shed their shells

When algae in the ocean get a virus, they shed their exoskeleton and those chalky bits can get flung into the air and trigger the formation of clouds