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Archive for the ‘space’ category: Page 28

Sep 6, 2024

Former ISS commander issues chilling response to the astronauts stuck

Posted by in category: space

Reference #18.8ced19b8.1725643687.30bebd35

https://errors.edgesuite.net/18.8ced19b8.1725643687.30bebd35

Sep 6, 2024

SpaceX rocket launches from Vandenberg Space Force Base in California

Posted by in category: space

This is the 20th flight for the first stage booster supporting this mission, SpaceX said online.

Sep 6, 2024

Frame-Dragging Animation: Neutron Star Orbiting a Rapidly-Spinning White Dwarf

Posted by in categories: media & arts, space

Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.

Sep 6, 2024

New neural framework enhances reconstruction of high-resolution images

Posted by in categories: robotics/AI, space

Deep learning (DL) has significantly transformed the field of computational imaging, offering powerful solutions to enhance performance and address a variety of challenges. Traditional methods often rely on discrete pixel representations, which limit resolution and fail to capture the continuous and multiscale nature of physical objects. Recent research from Boston University (BU) presents a novel approach to overcome these limitations.

As reported in Advanced Photonics Nexus, researchers from BU’s Computational Imaging Systems Lab have introduced a local conditional neural field (LCNF) network, which they use to address the problem. Their scalable and generalizable LCNF system is known as “neural phase retrieval”—” NeuPh” for short.

NeuPh leverages advanced DL techniques to reconstruct high-resolution phase information from low-resolution measurements. This method employs a convolutional neural network (CNN)-based encoder to compress captured images into a compact latent-space representation.

Sep 6, 2024

Gravitational waves unveil previously unseen properties of neutron stars

Posted by in categories: physics, space

A better understanding of the inner workings of neutron stars will lead to a greater knowledge of the dynamics that underpin the workings of the universe and also could help drive future technology, said the University of Illinois Urbana-Champaign physics professor Nicolas Yunes. A new study led by Yunes details how new insights into how dissipative tidal forces within double—or binary—neutron star systems will inform our understanding of the universe.

Sep 6, 2024

Moon Mysteries: Tiny Glass Beads Reveal Unexpected Volcanic Activity

Posted by in category: space

Analysis of lunar samples reveals that the Moon experienced volcanic activity until 120 million years ago, much later than previously thought.

This insight comes from examining glass beads in the samples, indicating localized volcanic activity fueled by radioactive elements.

Recent Lunar Volcanic Activity

Sep 6, 2024

Lumen Orbit 🚀 Data Centers in Space

Posted by in categories: robotics/AI, solar power, space, sustainability

🚀 LumenOrbit (YC S24) is building a network of megawatt-scale data centers in space, scalable to gigawatt capacity.

Why we should train AI in space.

Continue reading “Lumen Orbit 🚀 Data Centers in Space” »

Sep 5, 2024

Mercury: Spacecraft Drops Epic New Photos From Just 102 Miles Above

Posted by in category: space

The first images are back from a spacecraft that, on Sept. 4, got to within just 102.5 miles (165 kilometers) of the surface of Mercury, the closest it will ever get. The European Space Agency’s $1.8 billion BepiColombo vehicle snapped images of the inner planet’s polar regions and cratered surface as it zoomed by.

The flyby was the seventh of its long journey around the solar system—one of Earth, two of Venus and three of Mercury—as it attempts to lose energy and steer itself into orbit around Mercury during a long and complex journey. This latest flyby reduced the spacecraft’s speed and changed its direction.

Continue reading “Mercury: Spacecraft Drops Epic New Photos From Just 102 Miles Above” »

Sep 5, 2024

Artemis 3 astronauts will walk on the moon with 4G-equipped spacesuits

Posted by in categories: mobile phones, space

For the Artemis 3 mission, we will be able to reach astronauts up to 2 kilometers away from the lander.

Sep 4, 2024

A new method captures the stochastic dynamics in coherent X-ray imaging

Posted by in categories: biological, chemistry, nanotechnology, space

Coherent X-ray imaging has emerged as a powerful tool for studying both nanoscale structures and dynamics in condensed matter and biological systems. The nanometric resolution together with chemical sensitivity and spectral information render X-ray imaging a powerful tool to understand processes such as catalysis, light harvesting or mechanics.

Unfortunately these processes might be random or stochastic in nature. In order to obtain freeze-frame images to study stochastic dynamics, the X-ray fluxes must be very high, potentially heating or even destroying the samples.

Also, detectors acquisition rates are insufficient to capture the fast nanoscale processes. Stroboscopic techniques allow imaging ultrafast repeated processes. But only mean dynamics can be extracted, ruling out measurement of stochastic processes, where the system evolves through a different path in phase space during each measurement. These two obstacles prevent coherent imaging from being applied to complex systems.

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