Investment in renewables was double that of coal and gas in 2015
Last year a record $286 billion was invested in new electricity-generating capacity of renewables, twice as much as in coal and gas-fired power plants
Brains of elderly people who exercise look 10 years younger
Exercise can slow memory loss and decline in neural processing speeds, but people need to start exercising before they show any symptoms
Moon’s lack of water down to ancient shift in its spin axis
Molten rock flowing beneath the moon's crust billions of years ago shifted the moon's spin axis, hinting that lunar water stores date back to the very early solar system
Explosive road rage-like anger linked to parasite spread by cats
People who carry the common Toxoplasma parasite are more likely to be aggressive and to have outbursts of disproportionate rage
Pilot plant to turn CO2 into house parts and paving stones
What to do with carbon dioxide extracted from air? One initiative is aimed at locking it up in rock, making useful building materials in the process
‘Fearless’ twins reveal how our bodies affect our emotions
Changes in our body seem to trigger emotions like fear, but they only kick in if we are aware of the sensations, hints a study of people who can’t feel fear
Cute prairie dogs are serial killers savaging ground squirrels
Cuddly looking prairie dogs are herbivores, but that doesn't stop them killing their ground squirrel neighbours to help them prosper
Woodpeckers carry wood-eating fungi that may help them dig holes
Red-cockaded woodpeckers carry spores of wood-decaying fungi on their beaks, wings and feet, which could make it easier for them to excavate cavities
Ceres surprises with water ice and colourful bright spots
NASA's Dawn spacecraft zoomed in on dwarf planet Ceres and found unexpected treasures hidden in its craters
LIGO could catch dark matter made of black holes
The black holes that kicked off the first detection of gravitational waves seem to be the right size and frequency to be long-sought primordial black holes
