This week’s new questions
27 May 2020
Just how much stuff is there? Can we estimate the quantity of matter in the observable universe? Terry Day, by email
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Premium
Do ants bury their dead?
27 May 2020
A reader writes in to explain how ants deal with their dead by some members of the colony becoming "undertakers"
Why does 'falling' in dreams happen?
27 May 2020
You can be drifting off to sleep and then the feeling that you are falling suddenly brings you back to reality. Our readers explain why this happens
