A chain of copper and carbon atoms can be the thinnest metal wire

Credit: ACS Nano (2024). DOI: 10.1021/acsnano.3c12802 Researchers from EPFL’s Laboratory for Theory and Simulation of Materials in Lausanne, part of the NCCR MARVEL, have used computational methods to identify what could be the thinnest possible metal wire, as well as several other one-dimensional materials with properties that could be of interest to many applications. One-dimensional … Read more

New technology could help build quantum computers of the future

An artist’s rendering of a new method to create high-quality color centers (qubits) in silicon at specific locations using ultrafast laser pulses (femtosecond, or one quadrillionth of a second). The top right inset shows an experimentally observed optical signal (photoluminescence) from the qubits, with their structures shown at the bottom. Credit: Kaushalya Jhuria/Berkeley Lab Quantum … Read more

Webb opens a new window on supernova science

This article was reviewed according to Science fact checked trusted source proofread OK! The JADES Deep Field uses observations made by NASA’s James Webb Space Telescope (JWST) as part of the JADES program (JWST Advanced Deep Extragalactic Survey). A team of astronomers studying JADES data identified about 80 objects (circled in green) that changed brightness … Read more

Lone star status: tracking a low-mass star as it sweeps through the Milky Way

A simulation of a possible explanation for the speed of an L subdwarf named CWISE J124909+362116.0 shows that it is part of a binary pair of white dwarfs that ended when the white dwarf exploded in a supernova. Credit: Adam Makarenko / WM Keck Observatory It may seem as if the Sun is standing still … Read more

NASA’s Webb opens a new window on supernova science

Peering deep into the cosmos, NASA’s James Webb Space Telescope is giving scientists their first detailed glimpse of supernovae from a time when our universe was only a fraction of its current age. A team using Webb data has identified ten times more supernovae in the early universe than previously known. Some of the newly … Read more

Researchers demonstrate new way to ‘squeeze’ infrared light

Preparation and structural characterization of SrTiO3 membranes. Credit: Nature communication (2024). DOI: 10.1038/s41467-024-47917-x Researchers have shown for the first time that a specific class of oxide membranes can limit or ‘squeeze’ infrared light – a finding that holds promise for the next generation of infrared imaging technologies. The thin-film membranes retain infrared light much better … Read more

Research shows that fresh water and the most important living conditions appeared on Earth half a billion years earlier than thought

Credit: A zircon crystal under the microscope. Hugo Olierrook/Curtin University For life to emerge on a planet, we need two ingredients: dry land and (fresh) water. Strictly speaking, the water does not have to be fresh, but fresh water can only occur on dry land. Only when these two conditions are met can you convert … Read more

Former astronaut William Anders, who took the iconic Earthrise photo, died in a plane crash in Washington

SEATTLE (AP) — William Anders, the first Apollo 8 astronaut who took the iconic “Earthrise” photo in 1968 that showed the planet as a shadowy blue marble from space was killed Friday when the plane he was piloting alone crashed into the waters off Washington state’s San Juan Islands collapsed. He was 90. His son, … Read more

JWST discovers a wide variety of carbon-rich gases that serve as ingredients for future planets around very low-mass stars

Artist’s impression of a protoplanetary disk around a very low mass star. It shows a selection of hydrocarbon molecules (methane, CH4; Ethan, C2H6; Ethylene, C2H2; Diacetylene, C4H2; Propyne, C3H4; Benzene, C6H6) detected on the disk around ISO-ChaI 147. Credit: ALMA (ESO/NAOJ/NRAO) / MPIA Planets form in disks of gas and dust that orbit young stars. … Read more

The carbon dioxide level in the atmosphere is rising

One of the most important drivers of the exceptional heat Building in Earth’s atmosphere has reached levels beyond anything humans have ever experienced, officials announced Thursday. Carbon dioxidethe gas that responsible for most of the global warming caused by human activities is accumulating “faster than ever,” scientists from NOAA, the Scripps Institution of Oceanography and … Read more