30 December 2020
How big is the universe? What shape is it? How fast is it expanding? And when will it end? We answer these questions and more in our essential guide to the current state of cosmological knowledge
30 December 2020
We're all hoping 2021 will see the end of the pandemic. How we reboot the world after covid-19 will help shape our fate as an even bigger emergency looms – dangerous climate change
30 December 2020
Why do wet dogs like to shake themselves dry beside people? And what propels the constant movement of particles?
30 December 2020
Some see the shoe (pictured) as grey and green, but others perceive it to be pink and white. Is this due to differences in our brains, and if so, do we each perceive different versions of the colours that surround us?
30 December 2020
Birds can fly at tens of thousands of metres high. Ice forms on the wings of planes at this altitude, so why don’t the birds freeze?
30 December 2020
Grow bigger potatoes by getting a head start on the growing season with the magic of chitting, says Clare Wilson
30 December 2020
DeepMind's co-founder says artificial intelligence is set to crack many of the toughest problems in science, from the nature of life to nuclear fusion
30 December 2020
We know too well the dangers of pandemic-causing viruses and antibiotic-resistant bacteria, but deadly fungal infections that can shrug off our best treatments are on the rise too
30 December 2020
Eating predominantly uncooked food is a fad that goes back hundreds of years, but not one we need to follow, writes James Wong
30 December 2020
Despite mounting evidence that we eat, drink and breathe microplastics it still isn't clear if they enter our bodies and cause harm, but in 2021 we should get some answers
