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Categories: Biology: Developmental, Offbeat: Space

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

Einstein and Euler put to the test at the edge of the Universe      (via sciencedaily.com)     Original source 

The cosmos is a unique laboratory for testing the laws of physics, in particular those of Euler and Einstein. Euler described the movements of celestial objects, while Einstein described the way in which celestial objects distort the Universe. Since the discovery of dark matter and the acceleration of the Universe's expansion, the validity of their equations has been put to the test: are they capable of explaining these mysterious phenomena? A team has developed the first method to find out. It considers a never-before-used measure: time distortion.

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

Molecular filament shielded young solar system from supernova      (via sciencedaily.com)     Original source 

Isotope ratios found in meteorites suggest that a supernova exploded nearby while the Sun and Solar System were still forming. But the blast wave from a supernova that close could have potentially destroyed the nascent Solar System. New calculations shows that a filament of molecular gas, which is the birth cocoon of the Solar System, aided the capture of the isotopes found in the meteorites, while acting as a buffer protecting the young Solar System from the nearby supernova blast.

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

Never-before-seen way to annihilate a star      (via sciencedaily.com)     Original source 

Astronomers studying a powerful gamma-ray burst, may have detected a never-before-seen way to destroy a star. Unlike most GRBs, which are caused by exploding massive stars or the chance mergers of neutron stars, astronomers have concluded that this GRB came instead from the collision of stars or stellar remnants in the jam-packed environment surrounding a supermassive black hole at the core of an ancient galaxy.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Molecular
Published

Unraveling the connections between the brain and gut      (via sciencedaily.com)     Original source 

Engineers designed a technology to probe connections between the brain and the digestive tract. Using fibers embedded with a variety of sensors, as well as optogenetic stimulation, the researchers could control neural circuits connecting the gut and the brain, in mice.

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

Detection of an echo emitted by our Galaxy's black hole 200 years ago      (via sciencedaily.com)     Original source 

An international team of scientists has discovered that Sagittarius A* (Sgr A*), the supermassive black hole at the centre of the Milky Way, emerged from a long period of dormancy some 200 years ago. The team, led by Frédéric Marin, a CNRS researcher at the Astronomical Strasbourg Observatory (CNRS/University of Strasbourg), has revealed the past awakening of this gigantic object, which is four million times more massive than the Sun. Their work is published in Nature on 21 June.

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

Exoplanet may reveal secrets about the edge of habitability      (via sciencedaily.com)     Original source 

How close can a rocky planet be to a star, and still sustain water and life? A recently discovered exoplanet may be key to solving that mystery.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Chemistry: Biochemistry Chemistry: Organic Chemistry
Published

A new tool to study complex genome interactions      (via sciencedaily.com)     Original source 

Genome Architecture Mapping captures complex, multi-way interactions in the genome. This is different than the workhorse technique of 3D genomics, which sees mostly two-way contacts, finds a new study.

Environmental: General Environmental: Water Geoscience: Environmental Issues Geoscience: Geography Offbeat: Earth and Climate Offbeat: General Offbeat: Space Space: General
Published

Navigating underground with cosmic-ray muons      (via sciencedaily.com)     Original source 

Superfast, subatomic-sized particles called muons have been used to wirelessly navigate underground in a reportedly world first. By using muon-detecting ground stations synchronized with an underground muon-detecting receiver, researchers were able to calculate the receiver's position in the basement of a six-story building. As GPS cannot penetrate rock or water, this new technology could be used in future search and rescue efforts, to monitor undersea volcanoes, and guide autonomous vehicles underground and underwater.

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

Researchers demystify the unusual origin of the Geminids meteor shower      (via sciencedaily.com)     Original source 

Princeton researchers used observations from NASA's Parker Solar Probe mission to deduce that it was likely a violent, catastrophic event -- such as a high-speed collision with another body or a gaseous explosion -- that created the Geminids meteoroid stream. Mysteries surrounding the origin of the Geminids have long fascinated scientists because, while most meteor showers are created when a comet emits a tail of ice and dust, the Geminids stem from an asteroid -- a chunk of rock that normally does not produce a tail. Until now, this unusual meteoroid stream had only been studied from Earth.

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

Discovery of white dwarf pulsar sheds light on star evolution      (via sciencedaily.com)     Original source 

The discovery of a rare type of white dwarf star system provides new understanding into stellar evolution.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Tethering of shattered chromosomal fragments paves way for new cancer therapies      (via sciencedaily.com)     Original source 

Scientists discover shattered chromosomal fragments are tethered together during cell division before being rearranged; destroying the tether may help prevent cancerous mutations.

Biology: Biochemistry Biology: Biotechnology Biology: Cell Biology Biology: Developmental Biology: General Biology: Genetics Biology: Microbiology Biology: Molecular
Published

Close up on aging reveals how different cell types in the body age at different pace      (via sciencedaily.com)     Original source 

A team or researchers reports the first Aging Fly Cell Atlas (AFCA), a detailed characterization of the aging process in 163 distinct cell types in the laboratory fruit fly. Their in-depth analysis revealed that different cell types in the body age differently, each cell type following a process involving cell type-specific patterns. AFCA provides a valuable resource for researchers in the fruit fly and aging communities as a reference to study aging and age-related diseases and to evaluate the success of anti-aging strategies.

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

Scientists report 'benchmarks' for extreme space weather      (via sciencedaily.com)     Original source 

Extreme space weather threatens vital satellites orbiting the Earth, including the Global Navigation Satellite Systems (GNSS) which pass through the heart of the outer radiation belt. New research has now determined a series of benchmarks for the likely severity of extreme space weather events in GPS orbit.

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

Astronomers discover new link between dark matter and clumpiness of the universe      (via sciencedaily.com)     Original source 

Researchers reveal a theoretical breakthrough that may explain both the nature of invisible dark matter and the large-scale structure of the universe known as the cosmic web. The result establishes a new link between these two longstanding problems in astronomy, opening new possibilities for understanding the cosmos. The research suggests that the 'clumpiness problem,' which centres on the unexpectedly even distribution of matter on large scales throughout the cosmos, may be a sign that dark matter is composed of hypothetical, ultra-light particles called axions. The implications of proving the existence of hard-to-detect axions extend beyond understanding dark matter and could address fundamental questions about the nature of the universe itself.

Environmental: General Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geology Offbeat: Earth and Climate Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Space Space: Astronomy Space: General Space: Structures and Features Space: The Solar System
Published

Earth was created much faster than we thought: This makes the chance of finding other habitable planets in the Universe more likely      (via sciencedaily.com)     Original source 

Over the past decades, researchers thought Earth was created over a period of more than 100 million years. However, a new study from suggests that the creation of Earth was much more rapid, and that water and other essential ingredients for life were delivered to Earth very early on.

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

A scorching-hot exoplanet scrutinized by astronomers      (via sciencedaily.com)     Original source 

Through the Gemini-North Telescope in Hawai'i, the chemical composition of WASP-76 b is revealed in unprecedented detail, giving new insights also into the composition of giant planets.