In human cells, there are about 20,000 genes on a two-meter DNA strand—finely coiled up in a nucleus about 10 micrometers in diameter. By comparison, this corresponds to a 40-kilometer thread packed ...

Two companies have announced photonic devices that could solve specific real-world problems faster and with less energy than conventional computers.

Scientists show how stem cells process DNA with speed and precision, revealing principles that could lead to programmable DNA ...

The Apollo Guidance Computer used over 5,000 silicon ICs, making it one of the earliest large-scale transistor applications. How Do Transistors Work?