An anti-Semitic letter penned in 1927 by a German physicist shows racist views toward Albert Einstein and Jews in academia.

The ability to understand how groups of words relate to each other is foundational to language, and dates to an ancestor we shared with primate relatives at least 40 million years ago.

A fireball meteor lit up midwestern skies on Jan. 16, 2018, then landed on a frozen Michigan lake. Analysis of the space rock revealed a rich array of extraterrestrial organic compounds.

Since the first pet cemetery was established in the 19th century, the notion of pets sharing the afterlife with their owners has grown in popularity.

Happy 16th birthday to Mikko the grouper, a popular aquarium fish in Finland who missed his human visitors during the COVID-19 shutdown.

A tough exoskeleton in ironclad beetles protect them against piercing and crushing, and scientists recently uncovered the unusual interlocking structures that strengthen the insect's hard shell.

Filmmakers spent three years following pandas in China's Qinling Mountains, capturing never-before-seen footage of males competing over females.

A rose-breasted grosbeak that was captured in a Pennsylvania nature reserve is a bilateral gynandromorph — male on the right side and female on the left side.

Tough little tardigrades use biofluorescence to resist damage from ultraviolet rays.

The taste of your blood ignites a burst of sensory neuron activity in mosquito mouthparts.

Prizewinning images in the 2020 Nikon Small World competition combine art and science in stunning examples of microphotography.

Small wildlife do big things in the new docuseries "Tiny World," narrated by Paul Rudd.

A new report finds that microplastic debris is twice as abundant in the deep ocean as it is on the sea surface.

Tasmanian devils have been reintroduced to mainland Australia, where they haven't been seen in the wild for millennia.

Energy released by the August explosion in Beirut was enough to power over 100 homes for a year; it was one of the largest non-nuclear blasts to date.

A new study evaluates massive Megalodon alongside all sharks in the lamniform group — living and extinct. Even among its extinct relatives, Megalodon was unequalled in length and mass.

Artificial intelligence transformed NASA footage of Apollo missions to the moon, making decades-old events look like they were shot on high-definition video.

A once-thriving Iron Age village in Iberia was decimated and likely abandoned after a brutal massacre that left bodies lying in the streets where they fell.

Who will be the chonkiest bear of all? As bears in Alaska's Katmai National Park bulk up for winter, rangers invite the public to select one thicc beauty as the favored fattest.

For the first time, scientists have observed snakes disemboweling toads to dine on their organs.

An artist used machine learning to create photorealistic portraits of 54 ancient Roman emperors, working from nearly 1,000 images of busts.

Researchers at MIT have developed a new method called targeted dream incubation (TDI) for planting suggestions that can shape a sleeper's dreams.

These deep-diving whales can stay submerged for more than an hour longer than once thought, and recover surprisingly quickly.

After two dead giraffes were discovered in a South African nature reserve, scientists determined that the animals had been struck by lightning.