Dow Plunges 800-plus Points, Then Pulls Back

In the wee hours of December 26, 2004, a massive 9.2 earthquake occurred in the Indian Ocean, generating an equally massive tsunami that caused unprecedented devastation to 14 countries and killing more than 230,000. Twenty years later, National Geographic has revisited one of the deadliest natural disasters in recorded history with a new documentary: Tsunami: Race Against Time.

Beliefs are convictions of reality that we accept as true. They provide us with the basic mental scaffolding to understand and engage meaningfully in our world. Beliefs remain fundamental to our behavior and identity but are not well understood. Delusions, on the other hand, are fixed, usually false, beliefs that are strongly held but not widely shared.

Want to game remotely with your PlayStation 5 when you're away from home? Setting it up is easier than you may think.

We know the pain of LED lights that die way before their time: Here's what's going on.

Mansions are selling for $100 million and up in markets around the country, thanks to a surging stock market and wealth created from booms such as cryptocurrency and the frenzy over artificial intelligence. In June, a mansion in Malibu, California, sold to an unidentified buyer for $210 million, a record for that state.

She tried tackling the holidays without a plan or budget. Here's what she does differently now.