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Studying Uranian Moons using Passive Radar Sounding

Universe Today Feed - Wed, 04/02/2025 - 8:58pm

How can Uranus be used to indirectly study its moons and identify if they possess subsurface oceans? This is what a recent study presented at the 56th Lunar and Planetary Science Conference hopes to address as a team of scientists investigated using passive radar sounding methods from Uranus to study its five largest moons: Miranda, Ariel, Umbriel, Titania, and Oberon. This study has the potential to help researchers better understand the formation and evolution of Uranus and its largest moons despite a spacecraft not currently visiting Uranus.

Categories: Science

Galaxies Were Already Dying Just 700 Million Years After the Big Bang

Universe Today Feed - Wed, 04/02/2025 - 5:13pm

When galaxies run out of primordial hydrogen and helium, they cease star formation, shifting to primarily long-lived red stars. These galaxies are considered "red and dead." It usually takes billions of years for galaxies to run out of hydrogen, but now astronomers using JWST have found examples of galaxies that have already stopped forming stars just 700 million years after the Big Bang, much earlier than predicted by cosmological models.

Categories: Science

Students Designed a Mission to Venus on the Cheap

Universe Today Feed - Wed, 04/02/2025 - 12:45pm

Sometimes, the best way to learn how to do something is just to do it. That is especially true if you're learning to do something using a specific methodology. And in some cases, the outcome of your efforts is something that's interesting to other people. A team from across the European Union, led by PhD candidate Domenico D'Auria, spent a few days last September performing just such an exercise - and their work resulted in a mission architecture known as the Planetary Exploration Deployment and Research Operation - Venus, or PEDRO-V.

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Perseverance is Trying Out Spacesuit Materials on Mars

Universe Today Feed - Wed, 04/02/2025 - 12:04pm

NASA's Perseverance Rover is an ambitious mission. Along with its day-to-day exploration, the rover carried an experimental rotorcraft and is also caching samples for eventual return to Earth. But there's another aspect to its mission that's hidden in the glare of its ambitions. The rover is busy testing five different spacesuit materials.

Categories: Science

Scientists unveil starfish-inspired wearable tech for heart monitoring

Matter and energy from Science Daily Feed - Wed, 04/02/2025 - 11:23am
When we move, it's harder for existing wearable devices to accurately track our heart activity. But researchers found that a starfish's five-arm shape helps solve this problem. Inspired by how a starfish flips itself over -- shrinking one of its arms and using the others in a coordinated motion to right itself -- scientists have created a starfish-shaped wearable device that tracks heart health in real time.
Categories: Science

Scientists unveil starfish-inspired wearable tech for heart monitoring

Computers and Math from Science Daily Feed - Wed, 04/02/2025 - 11:23am
When we move, it's harder for existing wearable devices to accurately track our heart activity. But researchers found that a starfish's five-arm shape helps solve this problem. Inspired by how a starfish flips itself over -- shrinking one of its arms and using the others in a coordinated motion to right itself -- scientists have created a starfish-shaped wearable device that tracks heart health in real time.
Categories: Science

Galaxies die earlier than expected

Space and time from Science Daily Feed - Wed, 04/02/2025 - 9:28am
For a long time, scientists thought that only actively star-forming galaxies should be observed in the very early Universe. The James Webb space telescope now reveals that galaxies stopped forming stars earlier than expected. A recent discovery deepens the tension between theoretical models of cosmic evolution and actual observations. Among hundreds of spectra obtained with the Webb program RUBIES, the team has found a record-breaking galaxy that had already stopped forming stars during an epoch where galaxies are normally growing very rapidly.
Categories: Science

Multi-resistance in bacteria predicted by AI model

Computers and Math from Science Daily Feed - Wed, 04/02/2025 - 9:28am
An AI model trained on large amounts of genetic data can predict whether bacteria will become antibiotic-resistant. The new study shows that antibiotic resistance is more easily transmitted between genetically similar bacteria and mainly occurs in wastewater treatment plants and inside the human body.
Categories: Science

Transducer could enable superconducting quantum networks

Matter and energy from Science Daily Feed - Wed, 04/02/2025 - 9:28am
Applied physicists have created a photon router that could plug into quantum networks to create robust optical interfaces for noise-sensitive microwave quantum computers.
Categories: Science

Transducer could enable superconducting quantum networks

Computers and Math from Science Daily Feed - Wed, 04/02/2025 - 9:28am
Applied physicists have created a photon router that could plug into quantum networks to create robust optical interfaces for noise-sensitive microwave quantum computers.
Categories: Science

Study tracks chromium chemistry in irradiated molten salts

Matter and energy from Science Daily Feed - Wed, 04/02/2025 - 9:28am
Chemists report that radiation-induced chemical reactions may help mitigate the corrosion of metals in a new type of nuclear reactor cooled by molten salts.
Categories: Science

Metamaterials: Highly twisted rods store large amounts of energy

Matter and energy from Science Daily Feed - Wed, 04/02/2025 - 9:28am
An international research team has developed mechanical metamaterials with a high elastic energy density. Highly twisted rods that deform helically provide these metamaterials with a high stiffness and enable them to absorb and release large amounts of elastic energy. The researchers conducted simple compression experiments to confirm the initial theoretical results.
Categories: Science

Asteroid impact threat estimates improved for the Earth and the Moon

Space and time from Science Daily Feed - Wed, 04/02/2025 - 9:26am
An international team is currently closely tracking the near-Earth asteroid 2024 YR4. The impact probability estimates for the year 2032 has been reduced from a peak of 3 percent to below 0.001 percent.
Categories: Science

A new wave in ultrafast magnetic control

Matter and energy from Science Daily Feed - Wed, 04/02/2025 - 9:26am
Researchers have developed an innovative method to study ultrafast magnetism in materials. They have shown the generation and application of magnetic field steps, in which a magnetic field is turned on in a matter of picoseconds.
Categories: Science

A new wave in ultrafast magnetic control

Computers and Math from Science Daily Feed - Wed, 04/02/2025 - 9:26am
Researchers have developed an innovative method to study ultrafast magnetism in materials. They have shown the generation and application of magnetic field steps, in which a magnetic field is turned on in a matter of picoseconds.
Categories: Science

Plant doctor: An AI system that watches over urban trees without touching a leaf

Computers and Math from Science Daily Feed - Wed, 04/02/2025 - 9:26am
Monitoring urban plant health traditionally requires extensive manual labor and botanical expertise, creating challenges for cities facing expanding green spaces, higher population densities, and increasing threats to plants. Now, researchers have developed 'Plant Doctor,' an artificial intelligence-based tool that could revolutionize plant health monitoring. The proposed system can track individual leaves in urban video footage and precisely quantify the damage from pests and diseases, enabling scalable, non-invasive urban plant management.
Categories: Science

Smartwatch technology could help with future alcohol interventions

Computers and Math from Science Daily Feed - Wed, 04/02/2025 - 9:24am
New research suggests that smartwatches could provide a more accurate picture of people's daily drinking habits than current methods. The technology could be a key element for future alcohol interventions.
Categories: Science

Biodegradable fake fingernails make manicures more sustainable

Matter and energy from Science Daily Feed - Wed, 04/02/2025 - 9:23am
A new kind of press-on nails come in all shapes and colors -- and when you're done with them, you can melt them down and reuse the materials to make your next look.
Categories: Science

Researchers use 'smart' bomb therapy to destroy breast cancer

Matter and energy from Science Daily Feed - Wed, 04/02/2025 - 9:23am
Scientists are working to create a new light-activated 'smart' bomb to treat aggressive breast cancer. The new light-sensitive chemicals called cyanine-carborane salts are used in photodynamic therapy, or PDT, to destroy metastatic breast cancer tumors in mice with minimal side effects.
Categories: Science

Insight from one of Milky Way's most extreme environments

Space and time from Science Daily Feed - Wed, 04/02/2025 - 9:23am
In new images, scientists have gotten the closest look yet at Sagittarius C -- a 'stellar nursery' where clouds of gas and dust have collapsed to form thousands of new stars.
Categories: Science

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