Physics and Python stuff. Most of the videos here are either adapted from class lectures or solving physics problems. I ...

A new artificial intelligence (AI) tool could make it much easier—and cheaper—for doctors and researchers to train medical imaging software, even when only a small number of patient scans are ...

Find out what's up in your night sky during August 2025 and how to see it in this Space.com stargazing guide.

Explore news and insights on climate change, environment policies, global warming and sustainable practices with The New York Times Climate and Environment section.

William Fulton, Robert MacPherson, Characteristic Classes of Direct Image Bundles for Covering Maps, Annals of Mathematics, Vol. 125, No. 1 (Jan., 1987), pp. 1-92 ...

The new Maps feature label images of our moon, Mercury, Venus, Pluto, the International Space Station, and a number of icy moons that orbit the outer planets like Saturn (as seen by the Cassini ...