It’s surprisingly difficult to prove one of the most basic properties of a number: whether it can be written as a fraction. A ...

Nanotube bridge networks grow between the most abundant photosynthetic bacteria in the oceans, suggesting that the world is ...

Hypothetical devices that can quickly and accurately answer questions have become a powerful tool in computational complexity ...

Evolution was fueled by endosymbiosis, cellular alliances in which one microbe makes a permanent home inside another. For the ...