Knots are everywhere—from tangled headphones to DNA strands packed inside viruses—but how an isolated filament can knot ...

Materials science is an interdisciplinary field concerned with the understanding and application of the properties of matter. Materials scientists study the connections between the underlying ...

The Ravens fell to the Chiefs, 27-20, at Arrowhead Stadium in Week 1 in a rematch of the AFC Championship game. Watch the Ravens' top plays from their 24-0 shutout win over the Bengals. Watch QB Lamar ...

Dec. 12, 2025 Fossils from Qatar have revealed a small, newly identified sea cow species that lived in the Arabian Gulf more than 20 million years ago. The site contains the densest known collection ...

Guest: Dr. Tamsin Mather is a professor of Earth sciences at the University of Oxford in the UK.Transcripts for each episode are available within 1-3 days at sciencefriday.com. Subscribe to this ...