23 August 2017
In March 1926, three brothers and a friend climbed up to a hut overlooking the Aletsch glacier in Switzerland. They were never seen again – until their bones were found in 2012
23 August 2017
If you're reading this it wasn't the end of the world after all. Plus: jewels, jowls and a scientist brewer, and one chain pub you've not heard of before.
23 August 2017
Life on Earth depends on liquid water and the temperature at which it freezes or boils. How much would the values of 0°C and 100°C need to change to make life here unsustainable, or hugely different?
23 August 2017
Look carefully at this photo of a rainbow over Dinas Head near Fishguard in Wales (above) and you will notice that as it nears land it looks like there is a sharp bend in its arc. What caused this?
23 August 2017
My 8-year-old son is very worried about Earth being destroyed by the sun when it becomes a red giant billions of years from now. I have tried to comfort him by suggesting we could shift Earth's orbit by hurling asteroids towards the planet on trajectories...
23 August 2017
Not a lover of lobster? Scared of scampi? The internet is still your oyster with this recipe helper, but be prepared for a side dish of surprising swaps
