Ultima Thule is a snowman-shaped rock covered in weird ice
The New Horizons spacecraft just flew past a distant rock called MU69 or Ultima Thule that looks like a snowman - and it may have exotic ices on its surface
Green light implant relieves urinary incontinence in rats
A device that modulates nerve signals by shining green light on them has been found to restore bladder control in rats that urinate too often
A New Year vow for our leaders? Start taking climate change seriously
Never has there been a more important time for politicians to move beyond paying lip service to the fight against global warming, says Owen Gaffney
AI could make it impossible for artists and novelists to make a living
Copyright protections were originally designed to incentivise creators and allow them to profit from their work, but what happens when the artist is a machine?
Surrogacy should be a relationship, not a transaction
UK surrogates are speaking out against a move to pay women a fee for carrying someone else's child, says Natalie Smith
Crashing tidal waves may lurk beneath the surface of icy moons
Enceladus and Europa both have liquid oceans under their shells of ice, and they may be full of tidal waves bouncing energy between their cores and surfaces
Black-haired monkeys in Costa Rica are suddenly turning blonde
The howler monkeys of Costa Rica normally have black coats, but over the last 20 years some have turned yellow – a change too fast to be explained by evolution
Distant space rock Ultima Thule looks like a spinning bowling pin
NASA’s New Horizons probe has sent back the first blurry pictures of the most distant object we’ve ever visited
Massive space rock smash-up with Uranus recreated in a riot of colour
Uranus was probably tilted on its side by a giant impact when it was young, and a detailed new simulation of this process is a riot of swirling colours
Leafcutter ants have their own landfill sites that emit greenhouse gas
Ants that grow fungi inside their nests also make their own landfills – and these release significant amounts of nitrous oxide