James Lovell, astronaut and Apollo 13 commander, dies

Astronaut James Lovell, who was commander of the 1970 Apollo 13 mission, has died. Here's what we know.

20-foot sick python ditched in LA dumpster

A 20-foot python with a severe mouth infection was found abandoned in the dumpster of a downtown Los Angeles apartment complex.

Watch: Feisty little Pomeranian chases bear out of home

A proud Pomeranian fearlessly protected his home – or more likely his food bowl – from a black bear who wandered inside.

Wild pigs with blue meat found in California

Wild pigs found to have blue meat and fat show signs of having eaten rat poison, California wildlife officials warned.

Radioactive wasp nest found at former nuclear weapons site

A wasp nest found in South Carolina had radiation levels 10 times higher than what’s allowed by federal regulators.

Rare purple sea snails wash ashore Southern California beaches

Janthina sea snails, a rare tropical species, have been discovered on San Diego beaches for the first time in a decade.

Woman mauled by bear while hiking on popular Alaska trail

A woman had to be rescued from a popular hiking trail in Anchorage, Alaska after being attacked by a brown bear this week.

Nuclear waste being transformed into promising cancer treatment

The former headquarters of the Manhattan Project, where the world's first atomic bomb was created, is now turning nuclear waste into a potential cure for cancer.

New tiny world beyond Neptune discovered, giving boost to ‘Planet Nine’ theory

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed “Ammonite," researchers say it could provide more evidence to the hypothetical “Planet Nine" beyond Neptune.

NASA probe captures our closest-ever view of the sun

Scientists are using the images and data collected by the probe to understand the sun’s impact on Earth and the solar system.

Astronaut photographs elusive luminous event from far above Earth

An astronaut aboard the International Space Station has shared a striking photo of what is known as a Transient Luminous Event seen above a thunderstorm over Mexico and the Desert Southwest earlier in the week.

Watch: Angry elephant chases tour group during jungle safari

A wild elephant charged at tourists on a jungle safari in India, forcing vehicles to speed away in a dramatic escape.