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Oct 9, 2024

Twisted Black Hole Accretion Disks Revealed by XRISM’s Cutting-Edge X-Ray Vision

Posted by in categories: cosmology, satellites

XRISM is transforming our understanding of supermassive black holes and their galactic neighborhoods, providing high-resolution X-ray spectra that reveal complex structures like twisted accretion disks.

This groundbreaking international space mission, a collaboration between JAXA, NASA, and ESA, is only beginning to unveil the intricate details of black holes and their impact on galaxy formation, with early data already confirming long-held hypotheses.

Initial data from an international space mission is confirming decades of hypotheses about the galactic environments surrounding supermassive black holes. Yet, even more thrilling is the satellite behind this data—the X-Ray Imaging and Spectroscopy Mission (XRISM)—is just getting started providing such unparalleled insights.

Oct 9, 2024

Unlocking Quantum Communication: The Power of Diamond-Based Qubits

Posted by in categories: computing, quantum physics, security

Quantum computers and quantum communication are groundbreaking technologies that enable faster and more secure data processing and transmission compared to traditional computers. In quantum computers, qubits serve as the fundamental units of information, functioning as the quantum mechanical equivalent of bits in classical computing.

Where, for example, laser pulses in a glass fiber transport information from A to B in classical digital communication, quantum mechanics uses individual photons. In principle, this makes it impossible to intercept the transmitted data. Qubits that are optically addressable (can be controlled or read out with light) are suitable for storing the photons’ information and processing it in quantum computers. The qubits can store and process quantum states, and absorb and emit them in the form of photons.

Oct 9, 2024

Revolutionizing Space Communication: 424Gbit/S Achieved With Cutting-Edge Plasmonic Tech

Posted by in categories: internet, space

High-speed free-space data transmission could improve connectivity for space missions.

Researchers at ETH Zurich have achieved record-breaking data transmission speeds using plasmonic modulators, promising advancements in space communication and potential global high-speed internet access. With speeds potentially reaching 1.4 Tbit/s, this technology could change how the world connects.

Scientists have achieved data rates as high as 424Gbit/s across a 53-km (33-mile) turbulent free-space optical link using plasmonic modulators—devices that use special light waves called surface plasmon polaritons to control and modify optical signals. This new research establishes the foundation for high-speed optical communication links that transmit data through open air or space.

Oct 9, 2024

NASA’s Europa Clipper Spacecraft Transported to SpaceX Hangar at Kennedy Space Center

Posted by in category: space travel

NASAs Europa Clipper, the largest spacecraft designed for a planetary mission, was recently moved to the SpaceX hangar at Launch Complex 39A in anticipation of its launch.

The spacecraft, encapsulated within payload fairings for protection, is set to be mounted on a SpaceX Falcon Heavy rocket.

Launch preparation at kennedy space center.

Oct 9, 2024

Rewriting Earth’s History: New Research Reveals That Early Life More Complex Than Imagined

Posted by in categories: chemistry, sustainability

A recent study suggests that by the Neoproterozoic period, distinct lineages of amoebae, as well as the ancestors of plants, algae, and animals, had already emerged and managed to survive the two global glaciations that covered the planet.

Approximately 800 million years ago (mya), long before the formation of the supercontinent Pangea, Earth’s biodiversity was more varied than previously thought. Brazilian researchers, through the reconstruction of the evolutionary tree of life from ancient amoebas and the ancestors of algae, fungi, plants, and animals, have proposed a scenario where multiple distinct lineages of species coexisted during this era. Their findings are detailed in an article published in the Proceedings of the National Academy of Sciences of the United States of America (PNAS).

According to the literature, several lineages of eukaryotes that first emerged 1.5 billion years ago diversified and established themselves during the Neoproterozoic oxygenation event (850−540 mya), when oxygen levels in the atmosphere and oceans rose significantly owing to changes in the planet’s geochemistry.

Oct 9, 2024

Physics team uncovers a quantum Mpemba effect with a host of ‘cool’ implications

Posted by in category: quantum physics

Initially investigating out of pure curiosity, researchers have made a discovery that bridges the gap between Aristotle’s observations two millennia ago and modern-day understanding, while opening the door to a whole host of “cool”—and “cooling”—implications.

Oct 9, 2024

Detecting Planck-scale dark matter by leveraging quantum interference

Posted by in categories: cosmology, quantum physics

While various studies have hinted at the existence of dark matter, its nature, composition and underlying physics remain poorly understood.

Oct 9, 2024

Neural networks boost fusion research with rapid ion temperature and rotation velocity predictions

Posted by in categories: nuclear energy, robotics/AI

In fusion experiments, understanding the behavior of the plasma, especially the ion temperature and rotation velocity, is essential. These two parameters play a critical role in the stability and performance of the plasma, making them vital for advancing fusion technology. However, quickly and accurately measuring these values has been a major technical challenge in operating fusion reactors at optimal levels.

Oct 9, 2024

Two physicists discovered special properties of stable atoms with ‘magic numbers’ of protons and neutrons 75 years ago

Posted by in category: particle physics

The word magic is not often used in the context of science. But in the early 1930s, scientists discovered that some atomic nuclei—the center part of atoms, which make up all matter—were more stable than others. These nuclei had specific numbers of protons or neutrons, or magic numbers, as physicist Eugene Wigner called them.

Oct 9, 2024

Planetary defence mission Hera heading for deflected asteroid

Posted by in categories: asteroid/comet impacts, existential risks

ESA’s first planetary defence spacecraft has departed planet Earth. The Hera mission is headed to a unique target among the more than 1.3 million known asteroids in our Solar System – the only body to have had its orbit shifted by human action – to solve lingering mysteries associated with its deflection.

By sharpening scientific understanding of the ‘kinetic impact’ technique of asteroid deflection, Hera aims to make Earth safer. The mission is part of a broader ambition to turn terrestrial asteroid impacts into a fully avoidable class of natural disaster.

Developed as part of ESA’s Space Safety programme and sharing technological heritage with the Agency’s Rosetta comet hunter, Hera lifted off on a SpaceX Falcon 9 from Cape Canaveral Space Force Station in Florida, USA, on 7 October at 10:52 local time (16:52 CEST, 14:52 UTC) with its solar arrays deploying about one hour later.

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