Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Unanet's Kim Koster explains how Probability of Award helps GovCons move from intuition to data-driven forecasting and ...

When COVID-19 arrived, researchers tried to build evolutionary family trees—known as phylogenetic trees—of the virus. These ...

Here is a close look at the common- versus differential-mode voltage and instrumentation amplifier (IA) topologies.

Needing to redraw North Carolina's legislative districts under a court order, lawmakers last year employed a state lottery ...

From getting a refund to rebooking your trip, here’s what to know about handling air travel curveballs—and your rights as a traveler. Air travel can be a stressful experience, especially if your ...