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Categories: Space: Cosmology, Space: Exploration

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Space: Exploration Space: The Solar System
Published

Ancient asteroid grains provide insight into the evolution of our solar system      (via sciencedaily.com) 

The UK's national synchrotron facility, Diamond Light Source, was used by a large, international collaboration to study grains collected from a near-Earth asteroid to further our understanding of the evolution of our solar system. Researchers brought a fragment of the Ryugu asteroid to Diamond's Nanoprobe beamline I14 where a special technique called X-ray Absorption Near Edge Spectroscopy (XANES) was used to map out the chemical states of the elements within the asteroid material, to examine its composition in fine detail.

Space: Cosmology Space: Exploration Space: Structures and Features
Published

Webb Space Telescope reveals previously shrouded newborn stars      (via sciencedaily.com) 

Astronomers took a 'deep dive' into one of the first images from NASA's James Webb Space Telescope and were rewarded with a surprising discovery: telltale signs of two dozen previously unseen young stars about 7,500 light years from Earth.

Space: Cosmology
Published

Light from outside our galaxy brighter than expected      (via sciencedaily.com) 

Scientists analyzed new measurements showing that the light emitted by stars outside our galaxy is two to three times brighter than the light from known populations of galaxies, challenging assumptions about the number and environment of stars are in the universe.

Space: Exploration Space: The Solar System
Published

Marsquake!      (via sciencedaily.com) 

The quake lasted four hours and identified layering in the crust that could indicate a meteoroid impact. The 4.7 magnitude temblor happened in May 2022 and released five times more energy than any previously recorded quake on Mars. Mapping the seismic activity on Mars will help inform scientists where and how to build structures to ensure the safety of future human explorers.

Space: Cosmology Space: The Solar System
Published

Exquisite views of distant galaxies      (via sciencedaily.com)     Original source 

For decades, the Hubble Space Telescope provided us with the most spectacular images of galaxies. This all changed when the James Webb Space Telescope (JWST) launched and successfully completed commissioning. For astronomers, the universe is now revealed in a new way never imagined by the telescope's Near-Infrared Camera (NIRCam) instrument.

Space: Cosmology Space: Structures and Features
Published

Machine learning reveals how black holes grow      (via sciencedaily.com) 

Black holes are surrounded by an invisible layer that swallows every bit of evidence about their past. Researchers are now using machine learning and supercomputers to reconstruct the growth histories of black holes.

Space: Exploration
Published

Watching water droplets merge on the International Space Station      (via sciencedaily.com) 

Researchers design and analyze droplet experiments that were done on the International Space Station. The researchers sent four different surfaces with various roughness properties to the station, where they were mounted to a lab table. Cameras recorded the droplets as they spread and merged. The experimental results confirmed and expanded the parameter space of the Davis-Hocking model, a simple way to simulate droplets.

Space: Exploration Space: The Solar System
Published

Sound recording made of dust devils (tiny tornadoes of dust, grit) on Mars      (via sciencedaily.com) 

When the rover Perseverance landed on Mars, it was equipped with the first working microphone on the planet's surface. Scientists have used it to make the first-ever audio recording of an extraterrestrial whirlwind.

Space: Cosmology Space: Structures and Features
Published

Discovering rare red spiral galaxy population from early universe with the James Webb Space Telescope      (via sciencedaily.com) 

Morphology of galaxies contain important information about the process of galaxy formation and evolution. With its state-of-the-art resolution, NASA's James Webb Space Telescope has now captured several red spiral galaxies in its first image at an unprecedented resolution. Researchers have now analyzed these galaxies, revealing that these are among the furthest known spiral galaxies till date. The analysis further detected a passive red spiral galaxy in the early universe, a surprising discovery.

Space: Exploration Space: The Solar System
Published

First ultraviolet imaging of Sun's middle corona      (via sciencedaily.com) 

Researchers have discovered web-like plasma structures in the Sun's middle corona. The researchers describe their innovative new observation method, imaging the middled corona in ultraviolet (UV) wavelength. The findings could lead to a better understanding of the solar wind's origins and its interactions with the rest of the solar system.

Space: Exploration Space: Structures and Features
Published

Antihelium nuclei as messengers from the depths of the galaxy      (via sciencedaily.com) 

How are galaxies born, and what holds them together? Astronomers assume that dark matter plays an essential role. However, as yet it has not been possible to prove directly that dark matter exists. A research team has now measured the survival rate of antihelium nuclei from the depths of the galaxy -- a necessary prerequisite for the indirect search for Dark Matter.

Space: Exploration Space: The Solar System
Published

Deep-space optical communication demonstration project forges ahead      (via sciencedaily.com) 

Scientists have demonstrated new laser systems for deep-space optical communication.

Space: Cosmology Space: Structures and Features
Published

Without more data, a black hole's origins can be 'spun' in any direction      (via sciencedaily.com) 

A study finds that, for now, the catalog of known black hole binaries does not reveal anything fundamental about how black holes form. More data will be needed to determine whether the invisible giants arose from a quiet galactic disk or a more dynamic cluster of stars.

Computer Science: Quantum Computers Mathematics: Modeling Space: Cosmology
Published

Curved spacetime in the lab      (via sciencedaily.com) 

In a laboratory experiment, researchers have succeeded in realizing an effective spacetime that can be manipulated. In their research on ultracold quantum gases, they were able to simulate an entire family of curved universes to investigate different cosmological scenarios and compare them with the predictions of a quantum field theoretical model.

Space: Cosmology
Published

Astronomers report most distant known galaxies, detected and confirmed      (via sciencedaily.com) 

Astronomers have discovered the earliest and most distant galaxies confirmed to date using data from the James Webb Space Telescope. The telescope captured light emitted by these galaxies more than 13.4 billion years ago, which means the galaxies date back to less than 400 million years after the Big Bang, when the universe was only 2 percent of its current age.

Space: Cosmology Space: Exploration Space: Structures and Features
Published

NASA missions probe game-changing cosmic explosion      (via sciencedaily.com) 

On Dec. 11, 2021, astronomers detected a blast of high-energy light from the outskirts of a galaxy around 1 billion light-years away. The event has rattled scientists' understanding of gamma-ray bursts (GRBs), the most powerful events in the universe.

Offbeat: Paleontology and Archeology Space: Cosmology Space: Structures and Features Space: The Solar System
Published

Meteorites plus gamma rays could have given Earth the building blocks for life      (via sciencedaily.com) 

Even as detailed images of distant galaxies from the James Webb Space Telescope show us more of the greater universe, scientists still disagree about how life began here on Earth. One hypothesis is that meteorites delivered amino acids -- life's building blocks -- to our planet. Now, researchers have experimentally shown that amino acids could have formed in these early meteorites from reactions driven by gamma rays produced inside the space rocks.

Space: Cosmology Space: Exploration Space: Structures and Features
Published

Peekaboo! Tiny, hidden galaxy provides a peek into the past      (via sciencedaily.com) 

Peeking out from behind the glare of a bright foreground star, astronomers have uncovered the most extraordinary example yet of a nearby galaxy with characteristics that are more like galaxies in the distant, early universe. Only 1,200 light-years across, the tiny galaxy HIPASS J1131-31 has been nicknamed "Peekaboo" because of its emergence in the past 50-100 years from behind the fast-moving star that was obscuring astronomers' ability to detect it.

Space: Exploration Space: The Solar System
Published

Giant mantle plume reveals Mars is more active than previously thought      (via sciencedaily.com) 

Orbital observations unveil the presence of an enormous mantle plume pushing the surface of Mars upward and driving intense volcanic and seismic activity. The discovery reveals that Mars, like Earth and Venus, possesses an active interior, which challenges current views on the evolution of the red planet.

Space: Cosmology Space: Exploration Space: Structures and Features Space: The Solar System
Published

Researchers say space atomic clocks could help uncover the nature of dark matter      (via sciencedaily.com) 

Studying an atomic clock on-board a spacecraft inside the orbit of Mercury and very near to the Sun could be the trick to uncovering the nature of dark matter.