Deep in Peru's Acarí Valley lie the ruins of Tambo Viejo, an Inka provincial center where excavations have uncovered tasseled sacrificial llamas and brightly adorned guinea pigs. But save for a few seeds and some stored leaves, evidence of how the Inka used one of their most
A meteor crater buried beneath Oklahoma has turned out to be nearly 100 million years younger than scientists thought. Zircon crystals show the Ames impact occurred about 370 million years ago, meaning it was not part of the mysterious Ordovician bombardment once linked to a
Tiny magnetic fields created shortly after the Big Bang may help explain the long-running disagreement over how fast the universe is expanding. Detailed simulations show that these primordial fields could have changed the formation of hydrogen in the early universe, affecting
When light travels through a strongly scattering material, such as biological tissue or other disordered opaque media, it follows many different paths and produces a seemingly random speckle pattern. Wavefront shaping makes it possible to control this complex interference and
A 30-year forestry experiment in Australia found that heavily thinned mountain ash forests grew unusually large trees while recovering enough carbon to match or exceed untouched areas. The results suggest carefully managed thinning could support timber production, wildlife
A UCLA study links faster brain aging to specific gut bacteria and chemical byproducts, with older-looking brains also associated with poorer memory, focus, and mood. The findings suggest that biological signs of brain aging may appear decades before obvious symptoms and could
Working from before dawn until midnight, farmers Nikoletta Pajsan Nagy and Laszlo Pajsan fought Europe's driest summer ever to save their red pepper harvest in Hungary.
A new light-activated material can efficiently produce hydrogen from water without requiring an additional expensive metal catalyst. Researchers say its unusual sulfur-based chemistry could point toward cheaper and more practical ways to turn sunlight into clean fuel.
The picturesque Lac des Brenets between France and Switzerland has dried up after a record-breaking hot summer, leaving locals crying out for help to save the lake.
High-dose vitamin B3 is showing intriguing early promise as an addition to standard glioblastoma treatment, with 82% of patients in a small trial remaining progression-free after six months. Researchers believe niacin may help revive immune cells suppressed by the cancer, but
Attachment is the term psychologists use for the most significant relationships that hold people’s lives together
A vitamin D analog may help break down pancreatic cancer’s protective defenses, potentially making tumors more vulnerable to chemotherapy and immune attack. A small clinical trial found encouraging responses, especially in patients whose tumors had high levels of the vitamin D
A two-year randomized clinical trial involving 493 adults with overweight or obesity found that diet soft drinks were essentially as effective as water for long-term weight loss and weight maintenance. Participants drinking beverages sweetened with aspartame, acesulfame-K, or
Americans are crazy about sports. But whether that passion requires taxpayers to subsidize new facilities every time leagues and franchises ask for them needs rigorous scrutiny.
When everyone in a meeting voices the same opinion, an organization can miss important warning signs and new ideas. A research team from KAIST suggests that when members feel securely accepted within their group, they can express dissenting opinions in greater detail and more
The Pacific Ocean is warming unusually quickly, and this year's El Niño has already surpassed previous records. Forecasters expect it to strengthen even further before approaching its usual peak around December.
Cutting greenhouse gas emissions now may limit how much ice Antarctica loses this century and reduce the sea-level rise facing coastal communities, according to findings from a new study.
A "hidden variable" that can determine the success or failure of a chemical reaction has been found in the immediate vicinity of electrodes.
Violence in the home can range from intimidation to physical abuse. When it occurs there, we refer to it as domestic violence. Every year, more than 1 million people in the Netherlands age 16 and older experience domestic violence. This type of violence is often perpetrated by
When I explain topology to students, I start with a knot in a rope. You can stretch it, twist it or shake it, but the knot stays until you cut the rope. Physicists have found that some materials and devices carry similar "knots" in how waves move through them. These are
A nearby star system with two suns could potentially support an Earth-sized planet in a region where liquid water could exist, according to a new paper examining the dynamics of the system.
In recent experiments involving hydrogels and water droplets, researchers have proposed that exposure to visible light could make water evaporate faster without heating it. However, direct evidence that light acts on water itself has proven elusive.
Atmospheric circulation governs weather and climate, but it also carries angular momentum. When winds shift or mass redistributes, the atmosphere can exchange momentum with the solid Earth, slightly altering the planet's rotation rate. This is not a new concept, but what
From a drone flying above the waves to a camera just inches from the seafloor, University of Miami researchers are transforming how scientists observe coral reefs and measure changes that were once difficult, costly or time-consuming to document.
Is there life elsewhere, or is Earth unique in the universe? This is one of humanity’s great unanswered questions. One way to approach this mystery is to investigate how life began here on Earth. Our research explores the conditions where a mixture of molecules somehow
Scientists have known for years that squid have cells with bundles of tiny, hairlike protrusions on their heads and arms, similar to those buried deep inside the human ear that allow us to hear. Now, researchers at Case Western Reserve University have discovered that these
