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Categories: Anthropology: Cultures, Space: Astrophysics

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

Astrophysicists confirm the faintest galaxy ever seen in the early universe      (via sciencedaily.com)     Original source 

After the Big Bang, the universe expanded and cooled sufficiently for hydrogen atoms to form. In the absence of light from the first stars and galaxies, the universe entered a period known as the cosmic dark ages. The first stars and galaxies appeared several hundred million years later and began burning away the hydrogen fog left over from the Big Bang, rendering the universe transparent, like it is today. Researchers have now confirmed the existence of a distant, faint galaxy typical of those whose light burned through the hydrogen atoms; the finding should help them understand how the cosmic dark ages ended.

Chemistry: Inorganic Chemistry Energy: Nuclear Environmental: General Physics: General Physics: Optics Space: Astrophysics Space: General Space: Structures and Features
Published

Under pressure: Foundations of stellar physics and nuclear fusion investigated      (via sciencedaily.com)     Original source 

Research using the world's most energetic laser has shed light on the properties of highly compressed matter -- essential to understanding the structure of giant planets and stars, and to develop controlled nuclear fusion, a process that could harvest carbon-free energy.

Offbeat: General Offbeat: Space Space: Astrophysics Space: Exploration Space: General
Published

Quest for alien signals in the heart of the Milky Way takes off      (via sciencedaily.com)     Original source 

A graduate student is spearheading an extraordinary scientific endeavor -- a groundbreaking mission to uncover periodic signals emanating from the core of the Milky Way called the Breakthrough Listen Investigation for Periodic Spectral Signals (BLIPSS). Such repetitive patterns could be the key to unlocking the mysteries of extraterrestrial intelligence in our galaxy.

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

One-third of galaxy's most common planets could be in habitable zone      (via sciencedaily.com)     Original source 

A third of the exoplanets orbiting common M dwarf stars have gentle enough orbits to potentially be in the habitable zone capable of hosting liquid water.

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

X-ray emissions from black hole jets vary unexpectedly, challenging leading model of particle acceleration      (via sciencedaily.com)     Original source 

Black hole jets are known to emit x-rays, but how they accelerate particles to this high-energy state is still a mystery. Surprising new findings appear to rule out a leading theory, opening the door to reimagining how particle acceleration works. One model of how jets generate x-rays expects the jets' x-ray emissions to remain stable over long time scales. However, the new paper found that the x-ray emissions of a statistically significant number of jets varied over just a few years.

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

The search for habitable planets expands      (via sciencedaily.com)     Original source 

Astronomers are suggesting a new way to expand the search for habitable planets that takes into account a zone not previously considered: the space between the star and what's called soot-line in planet-forming disks.

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

Astronomers discover a key planetary system to understand the formation mechanism of the mysterious 'super-Earths'      (via sciencedaily.com)     Original source 

A study presents the detection of a system of two planets slightly larger than Earth orbiting a cold star in a synchronized dance. Named TOI-2096, the system is located 150 light-years from Earth. This system, located 150 light-years from Earth, is one of the best candidates for a detailed study of their atmosphere with the JWST space telescope.

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

Helium nuclei research advances our understanding of cosmic ray origin and propagation      (via sciencedaily.com)     Original source 

The latest observations from Low Earth Orbit with the International Space Station provide further evidence of spectral hardening and softening of cosmic ray particles.

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

NASA's Hubble hunts for intermediate-sized black hole close to home      (via sciencedaily.com)     Original source 

Astronomers have come up with what they say is some of their best evidence yet for the presence of a rare class of 'intermediate-sized' black hole that may be lurking in the heart of the closest globular star cluster to Earth, located 6,000 light-years away.

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

Element creation in the lab deepens understanding of surface explosions on neutron stars      (via sciencedaily.com)     Original source 

Scientists working in the lab have produced a signature nuclear reaction that occurs on the surface of a neutron star gobbling mass from a companion star. Their achievement improves understanding of stellar processes generating diverse nuclear isotopes.

Anthropology: Cultures Anthropology: General Biology: Zoology
Published

Earliest evidence of wine consumption in the Americas found in Caribbean      (via sciencedaily.com)     Original source 

Scientists have found what they believe to be the earliest known evidence of wine drinking in the Americas, inside ceramic artefacts recovered from a small Caribbean island.

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

An X-ray look at the heart of powerful quasars      (via sciencedaily.com)     Original source 

Researchers have observed the X-ray emission of the most luminous quasar seen in the last 9 billion years of cosmic history, known as SMSS J114447.77-430859.3, or J1144 for short. The new perspective sheds light on the inner workings of quasars and how they interact with their environment.

Anthropology: Cultures Archaeology: General Environmental: Ecosystems Environmental: Water Geoscience: Earth Science Geoscience: Environmental Issues Geoscience: Geography Paleontology: Climate Paleontology: Fossils
Published

Ancient climate change solves mystery of vanished South African lakes      (via sciencedaily.com)     Original source 

New evidence for the presence of ancient lakes in some of the most arid regions of South Africa suggests that Stone Age humans may have been more widespread across the continent than previously thought.

Anthropology: Cultures Archaeology: General Environmental: Ecosystems
Published

Oldest architectural plans detail mysterious desert mega structures      (via sciencedaily.com)     Original source 

Researchers have identified engravings in Jordan and Saudi Arabia as the oldest known scaled building plans in human history.

Anthropology: Cultures Anthropology: Early Humans Anthropology: General Archaeology: General Paleontology: Fossils
Published

Humanity's earliest recorded kiss occurred in Mesopotamia 4,500 years ago      (via sciencedaily.com)     Original source 

Written sources from Mesopotamia suggest that kissing in relation to sex was practiced by the peoples of the ancient Middle East 4,500 years ago.

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

Radio signal reveals supernova origin      (via sciencedaily.com)     Original source 

Astronomers reveal the origin of a thermonuclear supernova explosion. Strong emission lines of helium and the first detection of such a supernova in radio waves show that the exploding white dwarf star had a helium-rich companion.

Anthropology: Cultures Archaeology: General Environmental: Water Geoscience: Environmental Issues
Published

South Africa's desert-like interior may have been more inviting to our human ancestors      (via sciencedaily.com)     Original source 

Lining the Cape of South Africa and its southern coast are long chains of caves that nearly 200,000 years ago were surrounded by a lush landscape and plentiful food.

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

Astronomers observe the first radiation belt seen outside of our solar system      (via sciencedaily.com)     Original source 

Astronomers have described the first radiation belt observed outside our solar system, using a coordinated array of 39 radio dishes from Hawaii to Germany to obtain high-resolution images. The images of persistent, intense radio emissions from an ultracool dwarf reveal the presence of a cloud of high-energy electrons trapped in the object's powerful magnetic field, forming a double-lobed structure analogous to radio images of Jupiter's radiation belts.

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

Astronomers reveal the largest cosmic explosion ever seen      (via sciencedaily.com)     Original source 

Astronomers have uncovered the largest cosmic explosion ever witnessed. The explosion is more than ten times brighter than any known supernova and three times brighter than the brightest tidal disruption event, where a star falls into a supermassive black hole.

Space: Astrophysics Space: Cosmology Space: General
Published

Researchers find new approach to explore earliest universe dynamics with gravitational waves      (via sciencedaily.com)     Original source 

Researchers have discovered a new generic production mechanism of gravitational waves generated by a phenomenon known as oscillons.