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Categories: Physics: Optics, Space: Astronomy

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

Combined microscopy technique catches light-driven polymers in the act      (via sciencedaily.com)     Original source 

Researchers have used tip-scan high-speed atomic force microscopy combined with an optical microscope to observe light-induced deformation of azo-polymer films. The process could be followed in real time, and the film patterns were found to change with the polarization of the light source. The observations will contribute to the use of azo-polymers in applications such as optical data storage, and the approach is expected to be useful across materials science and physical chemistry.

Chemistry: Biochemistry Chemistry: General Chemistry: Inorganic Chemistry Energy: Technology Physics: Optics
Published

Tiny wireless light bulbs for biomedical applications      (via sciencedaily.com)     Original source 

The combination of OLEDs and acoustic antennas creates a light source that could be used for minimally invasive treatment methods.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General
Published

Baby quasars: Growing supermassive black holes      (via sciencedaily.com)     Original source 

The James Webb Space Telescope makes one of the most unexpected findings within its first year of service: A high number of faint little red dots in the distant Universe could change the way we understand the genesis of supermassive black holes.

Physics: Optics
Published

Powerless mechanoluminescent touchscreen underwater      (via sciencedaily.com)     Original source 

Scientists have developed an optical display based on mechano-optical mechanisms.

Computer Science: General Computer Science: Quantum Computers Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

Making quantum bits fly      (via sciencedaily.com)     Original source 

Physicists are developing a method that could enable the stable exchange of information in quantum computers. In the leading role: photons that make quantum bits 'fly'.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Finding new physics in debris from colliding neutron stars      (via sciencedaily.com)     Original source 

Neutron star mergers are a treasure trove for new physics signals, with implications for determining the true nature of dark matter, according to physicists.

Space: Astronomy Space: Astrophysics Space: Cosmology Space: Exploration Space: General Space: Structures and Features
Published

Astronomers spot oldest 'dead' galaxy yet observed      (via sciencedaily.com)     Original source 

A galaxy that suddenly stopped forming new stars more than 13 billion years ago has been observed by astronomers. Using the James Webb Space Telescope, astronomers have spotted a 'dead' galaxy when the universe was just 700 million years old, the oldest such galaxy ever observed.

Physics: Optics
Published

Compact chips advance precision timing for communications, navigation and other applications      (via sciencedaily.com)     Original source 

Precision timing and synchronization are crucial for navigation, communication and radar systems. Scientists have built compact chips capable of converting light into microwaves, which could improve these systems. This technology shrinks a tabletop system into a chip-sized format, reducing power usage and making it more applicable for use in everyday devices.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features
Published

Discovery tests theory on cooling of white dwarf stars      (via sciencedaily.com)     Original source 

Open any astronomy textbook to the section on white dwarf stars and you'll likely learn that they are 'dead stars' that continuously cool down over time. Astronomers are challenging this theory after discovering a population of white dwarf stars that stopped cooling for more than eight billion years.

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

Aluminum nanoparticles make tunable green catalysts      (via sciencedaily.com)     Original source 

A nanotechnology pioneer has uncovered a transformative approach to harnessing the catalytic power of aluminum nanoparticles by annealing them in various gas atmospheres at high temperatures.

Chemistry: Biochemistry Chemistry: Inorganic Chemistry Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics
Published

New method measures the 3D position of individual atoms      (via sciencedaily.com)     Original source 

Since more than a decade it has been possible for physicists to accurately measure the location of individual atoms to a precision of smaller than one thousandth of a millimeter using a special type of microscope. However, this method has so far only provided the x and y coordinates. Information on the vertical position of the atom -- i.e., the distance between the atom and the microscope objective -- is lacking. A new method has now been developed that can determine all three spatial coordinates of an atom with one single image.

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

Space tourism? Cosmic radiation exposure      (via sciencedaily.com)     Original source 

Space weather experts are urging regulators and space tourism innovators to work together to protect their passengers and crews from the risks of space weather radiation exposure.

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

Groundbreaking survey reveals secrets of planet birth around dozens of stars      (via sciencedaily.com)     Original source 

A team of astronomers has shed new light on the fascinating and complex process of planet formation. The research brings together observations of more than 80 young stars that might have planets forming around them, providing astronomers with a wealth of data and unique insights into how planets arise in different regions of our galaxy.

Offbeat: General Offbeat: Space Space: Astronomy Space: Astrophysics Space: General Space: Structures and Features
Published

What makes black holes grow and new stars form? Machine learning helps solve the mystery      (via sciencedaily.com)     Original source 

It takes more than a galaxy merger to make a black hole grow and new stars form: machine learning shows cold gas is needed too to initiate rapid growth -- new research finds.

Chemistry: Biochemistry Physics: Acoustics and Ultrasound Physics: Optics
Published

New cardiovascular imaging approach provides a better view of dangerous plaques      (via sciencedaily.com)     Original source 

Researchers have developed a new catheter-based device that combines two powerful optical techniques to image the dangerous plaques that can build up inside the arteries that supply blood to the heart. By providing new details about plaque, the device could help clinicians and researchers improve treatments for preventing heart attacks and strokes.

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

JWST captures the end of planet formation      (via sciencedaily.com)     Original source 

The James Webb Space Telescope is helping scientists uncover how planets form by advancing understanding of their birthplaces and the circumstellar disks surrounding young stars. Scientists have imaged winds from an old planet-forming disk (still very young relative to the Sun) which is actively dispersing its gas content. Knowing when the gas disperses is important as it constrains the time left for nascent planets to consume the gas from their surroundings.

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

Webb unlocks secrets of one of the most distant galaxies ever seen      (via sciencedaily.com)     Original source 

Looking deeply into space and time, astronomers have studied the exceptionally luminous galaxy GN-z11, which existed when our 13.8 billion-year-old universe was only about 430 million years old.

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

Spontaneous curvature the key to shape-shifting nanomaterials      (via sciencedaily.com)     Original source 

Inspired by nature, nanotechnology researchers have identified 'spontaneous curvature' as the key factor determining how ultra-thin, artificial materials can transform into useful tubes, twists and helices.

Chemistry: Biochemistry Physics: Optics
Published

Opening a window on the brain      (via sciencedaily.com)     Original source 

Researchers have introduced a new method for in vivo brain imaging, enabling large-scale and long-term observation of neuronal structures and activities in awake mice. This method is called the 'nanosheet incorporated into light-curable resin' (NIRE) method, and it uses fluoropolymer nanosheets covered with light-curable resin to create larger cranial windows.