The Amazon's largest fish makes a comeback

Even in the most biodiverse rainforest of the world, the pirarucu stands out: It can weigh up to 440 pounds, by far the largest of 2,300 known fish species in the Amazon.

Bear attacks woman who's walking her dogs, she plays dead even with 'crunched' skull

A woman was walking her two German shepherds near her home when the three of them encountered a wild bear — which then attacked her after one of her dogs charged.

Emperor penguins now listed as threatened species

Emperor penguins will now receive new protections under the Endangered Species Act after the U.S. Fish and Wildlife Service says climate change is threatening to eradicate the species.

November total lunar eclipse offers celestial highlight amongst meteor showers and glowing planets

North America will experience its last total lunar eclipse in November until 2025. According to NASA, the weather can impact how red the moon will look. The more dust and clouds in Earth’s atmosphere, the redder the moon will appear.

First SpaceX Falcon Heavy launches from Florida in three years, creating double sonic booms

The first SpaceX Falcon Heavy rocket to launch in three years soared above a thick blanket of fog Tuesday morning sending a top-secret U.S. national security mission to space.

‘Planet killer’ asteroids close to Earth discovered hiding in sun’s glare, study finds

Two of the three asteroids that were discovered earned the title of “planet killers” because of their sheer size. If either of them impacted a planet, such as Earth, it would cause a mass extinction event.

Say cheese! Sun showcases smiley appearance

The sun is showcasing a very smiley jack-o'-lantern appearance just in time for Halloween.

Hear and see the 'rare' impacts after large meteoroid hits Mars

Scientists revealed Thursday that two of its Mars robots recorded a sizable quake, leaving a crater bigger than any ever recorded in the solar system.

No, scientists didn't 3D-model Mary's husband, Joseph — that's Andre the Giant

A viral tweet this week claimed scientists at Stanford University had reconstructed a 3D model of how Joseph, the husband of Mary, might have looked.

Discovery could 'dramatically narrow' search for life on other planets

A new study says an Earth-like planet orbiting an M dwarf star, the most common type of star in our universe, appears to have no atmosphere. The finding could cause a major shift in the search for life.

Here’s what to do if you hit a deer with your vehicle

Here are some tips on how to avoid collisions with deer and what you should do if you hit one with your vehicle:

NASA announces members of its scientific team to study UFOs

NASA has selected 16 people who will spend nine months researching how much information is publicly available about UFOs, and how much more is needed to better understand unexplained sightings.

How to stop squirrels, other critters from eating your pumpkins

From cayenne pepper to owl decoys, here are some suggestions from experts on how to safely keep the squirrels at bay this Halloween.