
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

27 May 2020
Just how much stuff is there? Can we estimate the quantity of matter in the observable universe? Terry Day, by email

20 May 2020
Why didn’t our offspring evolve to let parents get more rest, and why don’t worms damage plants? Send us your thoughts and we will publish our favourites

20 May 2020
Want to preserve your body as a fossil for future generations? Readers give their suggestions on the best ways to do it

22 May 2019
If we know the idea of difference based purely on race is wrong, why do we still hang on to the idea of race in science, asks science writer Angela Saini.