Retired Lieutenant Colonel Alexander Vindman shares his thoughts on President Biden's surprise visit to Kyiv and what could happen if China decides to support Russia in the Ukraine war.

It looks like a city out of a science fiction movie: Space pods, flying dragons and floating rocks. But this is the birthplace of Islam, Saudi Arabia, which wants to transform its capital into one of "the most livable cities on Earth."

China is home to 16 of the 20 regions of the world most vulnerable to climate change, according to data published on Monday, with some of the world's most important manufacturing hubs at risk from rising water levels and extreme weather.

The Supreme Court is set to hear back-to-back oral arguments this week in two cases that could significantly reshape online speech and content moderation.

Police searching for missing UK mom Nicola Bulley said Sunday they had found a body.