Giant sharks once roamed the earth with a mega-appetite, research shows

Based on their digital creation, researchers calculated that the megalodon would have weighed around 70 tons, or as much as 10 elephants.

Watch: Bald eagle spotted swimming across Maine lake

A kayaker was taking a break from his morning ride when he saw the bald eagle swoop down into the water.

Human brain not meant to stay awake past midnight, researchers say

Changes in the brain during the nighttime hours can make a person more likely to view the world negatively, engage in harmful behavior, and make impulsive decisions, according to the researchers.

NASA's Artemis moon rocket makes final journey to launch pad

NASA's 32-story moon rocket began its last slow trip to the launch pad Tuesday night before launching the Orion spacecraft to the moon later this month.

Alligator attacks, kills 88-year-old woman in South Carolina

The Beaufort County Coroner's Office says it believes the victim slipped into a pond located in the Sun City development and was attacked by the alligator earlier this week.

Teen pilot hopes to become youngest to fly solo around the world

Mack Rutherford, a 17-year-old from Belgium, is nearing completion of becoming the youngest pilot to fly solo around the world.

Unruly off-road travel in Arizona is destroying habitat and natural landscaping

Unruly off-road drivers in Arizona are destroying habitats and natural landscaping. The Arizona Game and Fish Department is hoping everyone can get on board with abiding by the rules of exploring the desert.

NASA's Artemis moon rocket to roll out Tuesday ahead of late August launch

Teams are preparing to move NASA's next-generation moon rocket to the Florida launchpad on Tuesday ahead of the long-awaited Artemis 1 liftoff later this month.

Mississippian breaks 25-year state record for whopping 104-pound catfish

A Mississippi man hooked a 104-pound catfish, creating a new state record. The previous record was broken in 1997, weighing in at 101 pounds.

Bear seen over 2 dozen times in Tucson neighborhood released in the wild

Watch as a young bear is taken from a Tucson neighborhood where she's been seen over two dozen times and is released in a remote area where she's safe and in her natural habitat.

Norway euthanizes popular 1,320-pound walrus Freya

Walruses are protected and as recently as last month officials said they hoped Freya would leave of her own accord and that euthanasia would be a last resort.

Monster star Betelgeuse recovers after blowing its top

The agency said astronomers used the Hubble and other telescopes to figure out the star blew off a huge chunk of its surface in 2019.

Melting ice is likely causing Earth to spin faster; Here’s why that’s a problem for timekeepers

The retired Naval Observatory director of time explains why timekeepers around the world are still trying to figure out how to incorporate the increasing speed recorded over the past five years.