Mission Artemis plans to send Americans to the moon for the first time since the Nixon administration.

In a post on social media, Trump said a 10% tariff will take effect on Feb. 1, and will climb to 25% on June 1 if a deal is not in place for the United States to purchase Greenland.

Thousands of people rallied in Copenhagen to push back on President Trump's rhetoric that the U.S. should acquire Greenland.

Museveni claims victory in Uganda's contested election as opposition leader Bobi Wine goes into hiding amid chaos, violence and accusations of fraud.

We remember Ai, a highly intelligent chimpanzee who lived at the Primate Research Institute of Kyoto University for most of her life, except the time she escaped and walked around campus.

A trial was about to launch for a vaccine that would ward off the HIV virus. It would be an incredible breakthrough. Then it looked as if it would be over before it started.

The Administration for a Healthy America is RFK Jr.'s plan to tackle chronic disease, addiction and other persistent problems. But so far it's not being set up like previous new agencies.

Prediction market apps are thriving in Trump's second term, with traders betting on migrant deportations to election outcomes. A community of young, mostly male and very online traders are driving the industry's bonanza.

The crew of USS Ford is struggling to handle sewage problems on board the Navy's newest carrier.

President Trump says he's cutting federal money to sanctuary cities. But courts have blocked similar moves, ruling that the federal government can't use funding to coerce state and local governments.

Minneapolis is at the center of sweeping, evolving federal immigration push. It demonstrates how different immigration enforcement is under Trump's second administration - and raises questions about the lingering effects on local communities and law enforcement.

Officers in the Minneapolis-area participating in a U.S. immigration enforcement operation can't detain or tear gas peaceful protesters who aren't obstructing authorities, a judge ruled Friday.