First day of winter is December 21: Here's the science behind the winter solstice

Winter officially begins in the Northern Hemisphere on Dec. 21 with the winter solstice – the day with the least amount of possible daylight and the longest night.

Mysterious never-before-seen deep space radio signal found beyond Milky Way

This signal is known as a Fast Radio Burst (FRB), a bright flash of radio light lasting for a few milliseconds and originating from beyond the Milky Way.

These US national parks will require a reservation in 2024

If you’re planning on visiting a national park somewhere in the United States in 2024, be sure to check if you may require a reservation to enter. 

Scientists pinpoint cause of morning sickness in pregnancy and potential way to prevent it

The new study, published in the journal Nature, shows why some women like Kate Middleton and Amy Schumer became so sick during pregnancy that they needed to be admitted to the hospital.

Massive skull of ancient 'sea monster' discovered in England

After investigating the remains, paleontologists learned that the pliosaur, a prehistoric monster, roamed the planet over 100 million years ago.

Winter solstice 2023: When is it and what to know

For people who live in the Northern Hemisphere, the winter solstice marks the beginning of astronomical winter and the shortest day of the year.

SpaceX prepares for Falcon Heavy launch of DoD spaceplane this weekend

The X-37B spaceplane will launch Sunday from Cape Canaveral, Florida. The launch time is not public, but when the SpaceX Falcon Heavy rocket launches, residents in Florida will hear it.

Geminid meteor shower peaks in mid-December thanks to this puzzling asteroid

The Geminid meteor shower peak is in mid December this year, alongside a special moon that will allow better viewing conditions for stargazers to spot meteors to end 2023.

Mole with super hearing thought to be extinct found on South African beach

Golden moles are skilled burrowers with sensitive hearing that allows them to detect vibrations from surface movements. Unlike other burrowing mammals, they do not leave visible tunnels behind while moving under the sand.

Watch: ‘Watermelon aurora’ shimmers over Alaska

Video captured a vibrant “watermelon aurora” shimmering across the night sky above Alaska. 

Texas Parks & Wildlife warns of invasive species

Texas Parks and Wildlife officials are warning people about a potential threat to the state's ecosystem: the marbled crayfish, a popular household aquarium pet.