Manufacturers intentionally make their products hard to fix. Right-to-repair advocate Gay Gordon-Byrne fights for laws to stop companies from monopolizing repairs and let people fix their own stuff.

Materials scientist Andrew Dent takes us on a tour of the "materials library" where companies can find existing materials to reuse in their products—from chewing gum, to fish scales, to cow manure.

Each year, one cow can belch 220 pounds of the greenhouse gas methane. Animal scientist Ermias Kebreab experimented with alternative cow diets and found a surprising solution: seaweed.

More than a thousand soldiers were evacuated from the Azovstal steel plant, and Russia is consolidating control of Mariupol. It is making plans to annex the southwestern parts of the country.