Chemistry: Biochemistry Chemistry: General Chemistry: Thermodynamics Engineering: Nanotechnology Physics: Optics
Published

New technique pinpoints nanoscale 'hot spots' in electronics to improve their longevity      (via sciencedaily.com)     Original source 

Researchers engineered a new technique to identify at the nanoscale level what components are overheating in electronics and causing their performance to fail.

Offbeat: General Offbeat: Space Space: Astronomy Space: General Space: Structures and Features Space: The Solar System
Published

Astronomers spot a 'highly eccentric' planet on its way to becoming a hot Jupiter      (via sciencedaily.com)     Original source 

The newly discovered planet TIC 241249530 b has the most highly elliptical, or eccentric, orbit of any known planet. It appears to be a juvenile planet that is in the midst of becoming a hot Jupiter, and its orbit is providing some answers to how such large, scorching planets evolve.

Chemistry: Biochemistry Engineering: Nanotechnology Offbeat: Computers and Math Offbeat: General
Published

Enzyme-powered 'snot bots' help deliver drugs in sticky situations      (via sciencedaily.com)     Original source 

Snot might not be the first place you'd expect nanobots to be swimming around. But this slimy secretion exists in more places than just your nose and piles of dirty tissues -- it also lines and helps protect the lungs, stomach, intestines and eyes. And now, researchers have demonstrated in mice that their tiny, enzyme-powered 'snot bots' can push through the defensive, sticky layer and potentially deliver drugs more efficiently.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

How astronomers are using pulsars to observe evidence of dark matter      (via sciencedaily.com)     Original source 

Tantalizing evidence of potential dark matter objects has been detected with the help of the Universe's 'timekeepers'. These pulsars -- neutron stars which rotate and emit lighthouse-like beams of radio waves that rapidly sweep through space -- were used to identify mysterious hidden masses. Pulsars earned their nickname because they send out electromagnetic radiation at very regular intervals, ranging from milliseconds to seconds, making them extremely accurate timekeepers.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Sun-like stars found orbiting hidden companions      (via sciencedaily.com)     Original source 

Astronomers have uncovered what appear to be 21 neutron stars in orbit around stars like our Sun. The discovery is surprising because it is not clear how a star that exploded winds up next to a star like our Sun.

Engineering: Nanotechnology
Published

Metamaterials for the data highway      (via sciencedaily.com)     Original source 

Researchers have been the first to demonstrate that not just individual bits, but entire bit sequences can be stored in cylindrical domains: tiny, cylindrical areas measuring just around 100 nanometers. As the team reports, these findings could pave the way for novel types of data storage and sensors, including even magnetic variants of neural networks.

Offbeat: General Offbeat: Space Space: Astronomy Space: Exploration Space: General Space: The Solar System
Published

New analysis of Cassini data yields insights into Titan's seas      (via sciencedaily.com)     Original source 

A new study of radar experiment data from the Cassini-Huygens mission to Saturn has yielded fresh insights related to the makeup and activity of the liquid hydrocarbon seas near the north pole of Titan, the largest of Saturn's 146 known moons.

Chemistry: General Engineering: Nanotechnology
Published

Biodegradable electronics may advance with ability to control dissolve rate      (via sciencedaily.com)     Original source 

Biodegradable electronics allow for medical devices -- such as drug delivery systems, pacemakers or neural implants -- to safely degrade into materials that are absorbed by the body after they are no longer needed. But if the water-soluble devices degrade too quickly, they cannot accomplish their purpose. Now, researchers have developed the ability to control the dissolve rate of these biodegradable electronics by experimenting with dissolvable elements, like inorganic fillers and polymers, that encapsulate the device.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Scorching storms on distant worlds revealed      (via sciencedaily.com)     Original source 

An international study reveals the extreme atmospheric conditions on the celestial objects, which are swathed in swirling clouds of hot sand amid temperatures of 950C. Using NASA's powerful James Webb Space Telescope (JWST), researchers set out to capture the weather on a pair of brown dwarfs -- cosmic bodies that are bigger than planets but smaller than stars.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: Optics
Published

Microbeads with adaptable fluorescent colors from visible light to near-infrared      (via sciencedaily.com)     Original source 

Researchers have successfully developed an environmentally friendly, microspherical fluorescent material primarily made from citric acid. These microbeads emit various colors of light depending on the illuminating light and the size of the beads, which suggests a wide range of applications. Furthermore, the use of plant-derived materials allows for low-cost and energy-efficient synthesis.

Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Scientific definition of a planet says it must orbit our sun; A new proposal would change that      (via sciencedaily.com)     Original source 

The International Astronomical Union defines a planet as a celestial body that orbits the sun, is massive enough that gravity has forced it into a spherical shape, and has cleared away other objects near its orbit around the sun. Scientists now recognize the existence of thousands of planets, but the IAU definition applies only to those within our solar system. The new proposed definition specifies that the body may orbit one or more stars, brown dwarfs or stellar remnants and sets mass limits that should apply to planets everywhere.

Chemistry: Inorganic Chemistry Engineering: Nanotechnology Physics: Optics
Published

High-speed electron camera uncovers a new 'light-twisting' behavior in an ultrathin material      (via sciencedaily.com)     Original source 

Using an instrument for ultrafast electron diffraction (MeV-UED), researchers discovered how an ultrathin material can circularly polarize light. This discovery sets up a promising approach to manipulate light for applications in optoelectronic devices.

Offbeat: General Offbeat: Space Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Mars likely had cold and icy past, new study finds      (via sciencedaily.com)     Original source 

The question of whether Mars ever supported life has captivated the imagination of scientists and the public for decades. Central to the discovery is gaining insight into the past climate of Earth's neighbor: was the planet warm and wet, with seas and rivers much like those found on our own planet? Or was it frigid and icy, and therefore potentially less prone to supporting life as we know it? A new study finds evidence to support the latter by identifying similarities between soils found on Mars and those of Canada's Newfoundland, a cold subarctic climate.

Offbeat: General Offbeat: Space Space: Astronomy Space: General Space: Structures and Features Space: The Solar System
Published

The origins of dark comets      (via sciencedaily.com)     Original source 

Up to 60% of near-Earth objects could be dark comets, mysterious asteroids that orbit the sun in our solar system that likely contain or previously contained ice and could have been one route for delivering water to Earth, according to a new study.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Strong evidence for intermediate-mass black hole in Omega Centauri      (via sciencedaily.com)     Original source 

Most known black holes are either extremely massive, like the supermassive black holes that lie at the cores of large galaxies, or relatively lightweight, with a mass of under 100 times that of the Sun. Intermediate-mass black holes (IMBHs) are scarce, however, and are considered rare 'missing links' in black hole evolution.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Found with Webb: A potentially habitable icy world      (via sciencedaily.com)     Original source 

A international team of astronomers has made an exciting discovery about the temperate exoplanet LHS 1140 b: it could be a promising 'super-Earth' covered in ice or water.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Computer Science: Quantum Computers Engineering: Nanotechnology Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Moving from the visible to the infrared: Developing high quality nanocrystals      (via sciencedaily.com)     Original source 

Awarded the 2023 Nobel Prize in Chemistry, quantum dots have a wide variety of applications ranging from displays and LED lights to chemical reaction catalysis and bioimaging. These semiconductor nanocrystals are so small -- on the order of nanometers -- that their properties, such as color, are size dependent, and they start to exhibit quantum properties. This technology has been really well developed, but only in the visible spectrum, leaving untapped opportunities for technologies in both the ultraviolet and infrared regions of the electromagnetic spectrum.

Environmental: Water Geoscience: Earth Science Geoscience: Geology Space: Exploration Space: General Space: Structures and Features Space: The Solar System
Published

Building materials for water-rich planets in the early solar system      (via sciencedaily.com)     Original source 

Age data for certain classes of meteorite have made it possible to gain new findings on the origin of small water-rich astronomical bodies in the early solar system. These planetesimals continually supplied building materials for planets -- also for the Earth, whose original material contained little water. The Earth received its actual water through planetesimals, which emerged at low temperatures in the outer solar system, as shown by computational models carried out by an international research teach with participation by earth scientists.

Chemistry: Biochemistry Engineering: Nanotechnology
Published

Progress in development of a new high-tech kidney disease urine test      (via sciencedaily.com)     Original source 

Development of a new way to accurately measure human serum albumin (HSA) levels in people with chronic kidney disease has progressed in recent testing.