Hints that ‘Planet Nine’ may exist on edge of our solar system
An unusual alignment between the orbits of six small bodies in the Kuiper belt suggests there is an undiscovered planet 10 times the mass of Earth
2016 will be even hotter than 2015, officially the hottest ever
This year is likely to break last year’s record of the hottest year since measurements started
Ancient quasars in distant galaxies caught switching on suddenly
It should take at least thousands of years for the black holes at the centres of galaxies to become glowing quasars but a handful have blazed into life in less than 10
First clue to treating mystery disease of US Pacific island
A disease that only affects the people of Guam resembles Parkinson's, dementia and ALS. We now have a clue that could point the way to slow its development
Head transplant carried out on monkey, claims maverick surgeon
The plan to perform a human head transplant is on track, says Sergio Canavero, after successful experiments on monkeys and mice
Your face is mapped on the surface of other people’s brains
The spatial layout of your body parts is reflected in the way the neurons that control each bit are organised - now it seems other people's faces are too
Prime number with 22 million digits is the biggest ever found
The Great Internet Mersenne Prime Search has turned up another largest known prime, beating the previous record holder by nearly 5 million digits
The speedrunners who race to complete video games in record time
Racing through video games used to be a niche hobby, but now there's a huge online following, real-world events and even the developers are getting involved
Opioid overdose deaths in US ‘resemble new infectious disease’
Deaths from heroin and prescription painkillers have pushed up the death rate among young white adults in the US to levels not seen since the AIDS epidemic
Your home is a jungle inhabited by 100 different species
Our homes are complex ecosystems, supporting on average 100 different kinds of creepy-crawly, finds the first census of arthropods in houses
