OpenAI revealed in a Tuesday blog post that it has discovered a solution to the Navier-Stokes problem, a fundamental challenge in mathematics related to the flow of liquids. The claim was first reported by The New York Times and Wired.

The Navier-Stokes equations describe how fluids move and have remained a central unsolved problem in mathematics for around 90 years. OpenAI's announcement suggests the company has made progress on what is considered one of the most important open problems in physics and mathematics.