The Environmental Protection Agency has stopped estimating the dollar value of lives saved in the cost-benefit analyses for new pollution rules. By Maxine Joselow Future games will need to be held at ...

Scientific American is the essential guide to the most awe-inspiring advances in science and technology, explaining how they change our understanding of the world and shape our lives.

Studying over 100,000 embryos revealed genetic factors behind chromosome segregation issues that lead to aneuploidy, informing future risk screening and intervention.