In a result decades in the making, Los Alamos scientists have achieved light amplification with electrically driven devices based on solution-cast semiconductor nanocrystals—tiny specs of semiconductor matter made via chemical synthesis and often called colloidal quantum dots.

In August 1865, a 10-pound rock fell from space to Earth, landing with a bang in the remote village of Sherghati, India. After being recovered by witnesses to the event, the stone passed into the possession of a local British magistrate who endeavored to identify the source of the strange object. After more than a century of studying the meteorite fragments—so-called shergottites—researchers...

The Grand Canyon is visited by millions of admirers each year. So, naturally, you'd think that all of its rock layers had been studied and named. But you'd be wrong.

In an ever-evolving, post-pandemic world, more and more consumers of luxury goods are opting for unplanned, high-end experiences instead, according to researchers at the University of Houston Conrad N. Hilton College of Global Hospitality Leadership.

Researchers at the University of Maryland (UMD) have demonstrated a continuously operating optical fiber made of thin air.

The UN's Intergovernmental Panel on Climate Change has now made its message very clear. Our actions during the next seven years will influence the development of the global climate for the next one thousand. This means that we must make use of all measures available to limit the rise in global temperatures.

Two-photon microscopy (TPM) has revolutionized the field of biology by enabling researchers to observe complex biological processes in living tissues at high resolution. In contrast to traditional fluorescence microscopy techniques, TPM makes use of low-energy photons to excite fluorescent molecules for observation. This, in turn, makes it possible to penetrate the tissue much more deeply, and...

The International Space Station (ISS) is nearing the end of its service. While NASA and its partners have committed to keeping it in operation until 2030, plans are already in place for successor space stations that will carry on the ISS' legacy.

The experiences of people affected by the extreme floods in New South Wales and Queensland in 2022 are providing vital insights on preparedness, response and the early stages of recovery to help reduce future flood risk.

Researchers have developed a new high-speed way to detect the location, size and category of multiple objects without acquiring images or requiring complex scene reconstruction. Because the new approach greatly decreases the computing power necessary for object detection, it could be useful for identifying hazards while driving.

Thermoelectric materials, substances that convert temperature difference into electricity, find a multitude of applications involving the conversion of waste heat into useful electrical energy. However, they often need to rely on heavy rare earth elements for efficient thermoelectric conversion.

For decades, scientists sought a way to apply the outstanding analytical capabilities of neutrons to materials under pressures approaching those surrounding the Earth's core. These extreme pressures can rearrange a material's atoms, potentially resulting in interesting new properties.

Since 2017, political scientist Leila Demarest has immersed herself into the dynamics of Nigeria's National Assembly, the federal parliament of the country. How does this institution work, and how do politicians cooperate? And how are public resources, mainly funded by oil money, distributed among the different regions?

Searching for life's building blocks light-years away is an important task of the James Webb Space Telescope. But how does it know what to look for? Ph.D. student Marina Gomes Rachid is offering a helping hand by mapping out molecules that could exist in deep space.

Hiking, cycling, climbing and boating. When we take time off from work or school, we like to go out into nature. The landscape in other words play an important role for our vacations. To promote biodiversity and carbon sequestration there is a focus on planting more trees, especially in upland areas such as Howgill Fells.

In the course of the younger Tertiary, a sea spread over the territory of Europe up to the Black and Caspian seas, whose outcrop, the Eastern Paratethys, connected with the Indian Ocean approximately in the area of Iran. Together with the Mediterranean Sea, it formed an important link between the Indian Ocean and the Atlantic and, thanks to the flow of warm water masses in subtropical to...

This year and next, Americans will have the extraordinary opportunity to witness two solar eclipses as both will be visible throughout the continental U.S. On Oct. 14, 2023, the moon will obscure all but a small annulus of the sun, producing a "ring of fire" eclipse. On April 8, 2024, the eclipse will be total in a band stretching from Texas to Maine.

As the coronavirus began to spread globally, face masks were recommended in public settings to protect against transmission, and compliance varied significantly. In a new study of people shopping in a large Chinese store in early 2020, researchers examined the motives behind customers' compliance with mask recommendations and how their shopping behaviors changed with the onset of the pandemic. The...

Materials made of spider silk can be specifically modified or processed in such a way that living cells of a certain type adhere to them, grow and proliferate. This has been discovered by researchers at the University of Bayreuth under the direction of Prof. Dr. Thomas Scheibel.

Process engineering Ph.D. researcher Roanna Jones from the QUT Center for Agriculture and the Bioeconomy and Fight Food Waste Cooperative Research Center (CRC) said an estimated 1.3 billion tons of food is wasted globally each year, which is approximately one-third of food intended for human consumption.

Assuming that people with a criminal record are inherently more inclined to break the rules is wrong, according to a paper published in the Journal of Experimental Criminology by Joachim Vosgerau (Bocconi) and Sarah Kuehn (Slippery Rock University of Pennsylvania, U.S.). The authors wanted to test both the actual propensity to cheat of former inmates compared with people who had never been...

Do politicians internalize the consequences of their war-related votes? A new paper published in the Journal of Political Economy finds that they do—when their family is involved.

Visitors to a modern art museum lingered in front of artworks longer and exhibited more signs of excitement when given detailed descriptions of each piece compared to seeing basic labels, according to a study published May 3, 2023, in the open-access journal PLOS ONE by Serena Castellotti from the University of Florence, Italy, and colleagues.

The first modern humans spread across Europe in three waves during the Paleolithic, according to a study published May 3, 2023, in the open-access journal PLOS ONE by Ludovic Slimak of the CNRS and University of Toulouse III, France.