Frozen mammoth skin retained its chromosome structure
Features as small as 50 nanometers preserved in a 50,000-year-old sample. Enlarge (credit: LEONELLO CALVETTI/SCIENCE PHOTO LIBRARY) One of the challenges of working with ancient DNA samples is that damage accumulates ove.....»»
Multi-dimensional band structure spectroscopy in the photonic synthetic frequency dimension
In the photonic synthetic dimension, the coupling of internal degrees of freedom of photons, such as frequency, spatial mode, and orbital angular momentum, generates extra dimensions in addition to real space. This approach is a powerful tool to inve.....»»
Machine learning enables accurate electronic structure calculations at large scales for material modeling
The arrangement of electrons in matter, known as the electronic structure, plays a crucial role in fundamental but also applied research, such as drug design and energy storage. However, the lack of a simulation technique that offers both high fideli.....»»
Discovery of 100 fatty acids opens new research paths
Fatty acids are the molecular building blocks that form the lipids essential for life. While some lipids form cell membranes, others are present naturally as triglycerides in body fat and the waxes on our hair and skin......»»
Researchers decode the structure of a crucial neural transport protein
Using Cryo-EM, a powerful microscopy technique, researchers at the Indian Institute of Science (IISc) and collaborators have decoded the molecular architecture of a transporter protein controlling the movement of a key neurotransmitter. Their work is.....»»
Forensics lab cracks case on newer, "greener" gunshot residue
Discoveries by West Virginia University forensic scientists about how gunshot residue behaves on skin, hair and fabric will allow crime scene investigators to catch up to the proliferation of new, eco-friendly types of ammunition and make faster, mor.....»»
The physics of how gentoo penguins can swim speedily underwater
A variable called the "angle of thrust" explains why finned wings generate so much thrust. Enlarge / Gentoo penguins are the world's fastest swimming birds, thanks to the unique shape and structure of their wings. (credit: Priya.....»»
Smelling in stereo—a surprising find on a fossilized shark
Fossils and modern experiments are telling us what a shark's nose knows. Enlarge / Artist's reconstruction of the shark as it once lived. (credit: Klug et. al.) Sharks are largely cartilaginous, a body structure that oft.....»»
Threads now available to download: Meta’s microblogging alternative to Twitter
As announced earlier this week, Meta today officially launched Threads – its new microblogging social network that aims to compete with Twitter. However, although Threads is a new app, it exists under the branding and structure of Instagram, so us.....»»
New discovery toward sugar origami
Researchers at the Max Planck Institute of Colloids and Interfaces (MPICI) have designed a carbohydrate sequence capable of folding into a stable secondary structure......»»
Unraveling the super-complex structure of supercooled liquids
When cooled to their freezing point, most liquids become solids or crystallize. In other words, the molecules arrange themselves in a perfectly ordered fashion, which physicists call a crystal. Supercooled liquids are different; they do not form such.....»»
TweetDeck down for some, likely due to amplified rate-limiting
Some Twitter users are reporting that TweetDeck is down for them. Some are seeing the web app stalled with “Loading” spinners; others are getting Retry buttons that do nothing; and yet others are seeing populated columns frozen in time … more.....»»
Mars has liquid guts and strange insides, InSight suggests
Wobbles in its rotation are difficult to explain without a liquid core. Enlarge / Artist's view of what InSight looked like after landing. (credit: NASA/JPL-Caltech) Mars appears to be a frozen expanse of red dust, gapin.....»»
James Webb spots clues to the large-scale structure of the universe
If you look at the universe on a big enough scale, galaxies aren't randomly scattered. Instead, they form a structure known as the cosmic web......»»
How biocrust influences bacterial communities in both biocrust and subsoil layers
Biocrusts, known as the "desert skin," includes communities of cyanobacteria, algae, fungi, bacteria, lichen, and mosses. They can mediate both the physical and biological environments of dryland ecosystems......»»
Researchers provide first chromosome-level genome assembly in Murraya plants
Murraya paniculata, commonly known as orange jessamine in the family Rutaceae, is an important ornamental plant in tropical and subtropical regions that is famous for its strong fragrance. As an ornamental plant with strong flower aroma, the floral v.....»»
Skin disease in endangered killer whales concerns scientists
Scientists studying endangered southern resident killer whales have observed a strong increase in the prevalence of skin disease in this population......»»
Neural wavefront shaping camera overcomes light scattering problem in optical imaging
Engineers from Rice University and the University of Maryland have created full-motion video technology that could potentially be used to make cameras that peer through fog, smoke, driving rain, murky water, skin, bone and other media that reflect sc.....»»
Cuttlefish camouflage gets complicated
They receive constant feedback about their skin pattern and adjust camouflage accordingly. Enlarge / This cuttlefish can change its skin pattern to blend in with different background environments. (credit: Stephan Junek, Max Plan.....»»
Squid-inspired soft material is a switchable shield for light, heat, microwaves
With a flick of a switch, current technologies allow you to quickly change materials from being dark to light, or cold to hot, just by blocking or transmitting specific wavelengths. But now, inspired by squid skin, researchers in ACS Nano report a so.....»»
3D pattern generation via chemical vapor deposition of ceramic eutectic system for novel solid-state phosphors
The eutectic structure of metals and ceramics occurs when multiple solid phases solidify from a liquid phase, forming a three-dimensional (3D) pattern through a self-organizing phenomenon. Traditionally, it was believed that eutectic structures could.....»»