Paul Arnold

Whenever anything is written about the Denisovans, the word "mysterious" is almost guaranteed to appear. That is because we just don't know a lot about this extinct human group that may have lived in East Asia from at least ...

One of the many challenging parts of being a doctor is diagnosing exactly what is wrong with a patient. This is because numerous illnesses often have overlapping symptoms, which can make the diagnostic journey a long one.

One day, you may be able to easily smell what you are looking at when browsing online. Sending smells over the internet has long been a dream, and while it may seem far-fetched, researchers have now taken a major step toward ...

AI agents tend to do things when we give them specific commands, such as analyzing data and answering questions. But what would they do if left to their own devices?

The old saying that one bad apple spoils the barrel suggests that an individual behaving badly can have a negative influence on the entire group. The idea now has some fresh scientific backing.

Marine heat waves are usually seen as destructive events that can disrupt entire ocean ecosystems and trigger massive environmental damage. In 2018 and 2019, an extreme heat wave hit the Bering Sea, causing spring sea ice ...

In most parts of Europe, bees have become less widespread during the last 100 years, according to a new study published in the journal Proceedings of the National Academy of Sciences.

Minecraft is one of the world's most popular video games, where players explore, gather resources, craft items and try to survive in a virtual universe constructed of 3D cubes that represent different materials.

When Earth formed billions of years ago, its metallic core was wrapped in a global ocean of molten rock, which eventually cooled and crystallized to form the mantle. Today, when deep-rooted mantle plumes rise toward the surface ...

The Terracotta Army near Xi'an, China, is a breathtaking sight: thousands of life-size terracotta figures created in the third century B.C. to guard the tomb of Emperor Qin Shihuang. They were discovered in 1974, and people ...

Whether we are waiting for a car windshield to defrost in winter or a warm drink to cool down, how long it takes for an object to settle into a stable, even temperature within its environment (thermal equilibrium) depends ...

Qubits, the quantum equivalent of digital bits, are fragile and prone to errors. That makes building reliable quantum computers extremely difficult. One fix has been to use traditional magic state distillation, which filters ...

Proteases are naturally occurring enzymes that break down proteins into peptides and even single amino acids. They are useful in medicine and industrial processes, where they clean tissue, digest waste and help in the manufacture ...

When corals are stressed by pollution, high water temperatures or other environmental changes, they can lose the microscopic algae living inside them and on which they depend for food. As a result, they turn white, a phenomenon ...

While many dinosaurs were fearsome predators with razor-sharp teeth, others were peaceful herbivores munching on plants. We can now add a new species to the list of plant-eaters, Infernogallus jamesi. Its name means hell ...