Fat Bear Week starts a day late after bear kills rival on live webcam

Fat Bear Week is back, but the annual contest that celebrates brown bears and their healthy appetites was delayed after a bear killed another bear on a live webcam.

Scuba divers have 'once-in-a-lifetime' close encounter with great white shark near Catalina

Scuba divers near Catalina had a rare and thrilling encounter with a 15-foot Great White Shark, capturing the moment on video as the shark calmly circled them before swimming away.

Watch: 'Comet of a century' puts on beautiful show while zooming by Earth

Astronomers said Comet Tsuchinshan-ATLAS reached perihelion, its closest point to the Sun, on Sept. 27 and will spin back around for another visit to Earth's neighborhood. On or before Oct. 12 will be the next chance to see the celestial show.

NOAA orders next generation of hurricane hunter aircraft

The National Oceanic and Atmospheric Administration announced recently it awarded a contract to Georgia-based Lockheed Martin Aeronautics for two specialized C-130J Hercules aircraft. The planes are expected to join NOAA’s fleet by 2030.

Rare 'ring of fire' eclipse to dazzle Easter Island, parts of South America

An annular solar eclipse, known as the "ring of fire," will be visible on Wednesday, primarily over the Pacific, with Easter Island, parts of Argentina, and Chile in its path.

Crews rescue ‘badly’ burned bear from Nevada wildfire

As crew members continued to battle the Davis Fire in Western Nevada, they rescued a bear found with severe burns.

Wisconsin bear attack: Boy shoots, kills animal mauling father

A 12-year-old boy shot and killed a wounded black bear as it was mauling his father near their hunting cabin in the thick western Wisconsin woods.

When to see the partial lunar eclipse and supermoon combo in NYC

Stargazers are in for a treat as a partial lunar eclipse and a supermoon will occur simultaneously. Here's when to see it in NYC.

Hiker mauled by bear, hospitalized with ‘extensive’ injuries: official

A 45-year-old man hiking alone in Alberta, Canada, was mauled by a bear late Friday morning, the Royal Canadian Mounted Police (RCMP) confirmed to Fox News Digital Saturday.

WATCH: SpaceX's Polaris Dawn crew completes first private spacewalk

Jared Isaacman, CEO of Shift4 integrated payment processing solutions, participated in the first ever private spacewalk by a group of astronauts who left a SpaceX capsule after a delay of a few hours, testing a new line of spacesuits in the company's riskiest mission yet.

A record number of human beings are now in orbit

For the first time, there are 19 human beings orbiting the planet. They represent three different countries and are aboard three different spacecraft.

Florida man arrested for keeping alligators in his backyard swimming pool, FWC says

A Florida man has been arrested after he was caught keeping alligators and several freshwater slider turtles on his property, according to the Florida Fish and Wildlife Conservation Commission (FWC).