Swedish Battery Maker Northvolt Collapses, a Blow to Europe

As retailers slow down orders for foreign goods because of tariffs, companies that recirculate overstocked or returned items may help fill the gap.

The Ames Test offered a fast and inexpensive way to identify carcinogens, leading to the banning of chemicals linked to cancer and birth defects.

With airports and airlines experiencing delays and cancellations, and staffing shortfalls at national parks, here’s what to know before you go.