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Categories: Archaeology: General, Offbeat: Space

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Anthropology: General Archaeology: General
Published

Ancient African empires' impact on migration revealed by genetics      (via sciencedaily.com) 

Traces of ancient empires that stretched across Africa remain in the DNA of people living on the continent, reveals a new genetics study.

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

Brightest gamma-ray burst ever observed reveals new mysteries of cosmic explosions      (via sciencedaily.com) 

Scientists believe the gamma-ray emission, which lasted over 300 seconds, is the birth cry of a black hole, formed as the core of a massive and rapidly spinning star collapses under its own weight.

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

Redness of Neptunian asteroids sheds light on early Solar System      (via sciencedaily.com) 

Asteroids sharing their orbits with the planet Neptune have been observed to exist in a broad spectrum of red color, implying the existence of two populations of asteroids in the region, according to a new study by an international team of researchers.

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

Temperature of a rocky exoplanet measured      (via sciencedaily.com) 

An international team of researchers has used NASA's James Webb Space Telescope to measure the temperature of the rocky exoplanet TRAPPIST-1 b. The measurement is based on the planet's thermal emission: heat energy given off in the form of infrared light detected by Webb's Mid-Infrared Instrument (MIRI). The result indicates that the planet's dayside has a temperature of about 500 kelvins (roughly 450 degrees Fahrenheit) and suggests that it has no significant atmosphere.

Archaeology: General Geoscience: Earth Science Geoscience: Geology Geoscience: Volcanoes
Published

Giant volcanic 'chain' spills secrets on inner workings of volcanoes      (via sciencedaily.com) 

Volcanic relics scattered throughout the Australian landscape are a map of the northward movement of the continent over a 'hotspot' inside the Earth, during the last 35 million years.

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

Artificial intelligence discovers secret equation for 'weighing' galaxy clusters      (via sciencedaily.com) 

Astrophysicists have leveraged artificial intelligence to uncover a better way to estimate the mass of colossal clusters of galaxies. The AI discovered that by just adding a simple term to an existing equation, scientists can produce far better mass estimates than they previously had. The improved estimates will enable scientists to calculate the fundamental properties of the universe more accurately, the astrophysicists have reported.

Archaeology: General Geoscience: Geography Paleontology: General
Published

Copper artifacts unearth new cultural connections in southern Africa      (via sciencedaily.com) 

Chemical and isotopic analysis of artifacts from southern Africa called copper ingots reveals new cultural connections among people living in the region between the 5th and 20th centuries.

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

Surprisingly simple explanation for the alien comet 'Oumuamua's weird orbit      (via sciencedaily.com) 

When the first interstellar comet ever seen in our solar system was discovered in 2017, one characteristic -- an unexplained acceleration away from the sun -- sparked wild speculation, including that it was an alien spacecraft. An astrochemist found a simpler explanation and tested it with an astronomer: in interstellar space, cosmic rays converted water to hydrogen in the comet's outer layers. Nearing the sun, outgassed hydrogen gave the tiny comet a kick.

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

Searching for life with space dust      (via sciencedaily.com) 

Following enormous collisions, such as asteroid impacts, some amount of material from an impacted world may be ejected into space. This material can travel vast distances and for extremely long periods of time. In theory this material could contain direct or indirect signs of life from the host world, such as fossils of microorganisms. And this material could be detectable by humans in the near future, or even now.

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

Hunting Venus 2.0: Scientists sharpen their sights      (via sciencedaily.com) 

With the first paper compiling all known information about planets like Venus beyond our solar system, scientists are the closest they've ever been to finding an analog of Earth's 'twin.'

Chemistry: Biochemistry Chemistry: General Chemistry: Organic Chemistry Offbeat: General Offbeat: Paleontology and Archeology Offbeat: Space Space: Exploration Space: General Space: The Solar System
Published

Uracil found in Ryugu samples      (via sciencedaily.com) 

Samples from the asteroid Ryugu collected by the Hayabusa2 mission contain nitrogenous organic compounds, including the nucleobase uracil, which is a part of RNA.

Energy: Nuclear Offbeat: General Offbeat: Space Physics: General Physics: Optics Physics: Quantum Computing Physics: Quantum Physics Space: Astrophysics Space: General Space: Structures and Features
Published

Scientists find a common thread linking subatomic color glass condensate and massive black holes      (via sciencedaily.com) 

Atomic nuclei accelerated close to the speed of light become dense walls of gluons known as color glass condensate (CGC). Recent analysis shows that CGC shares features with black holes, enormous conglomerates of gravitons that exert gravitational force across the universe. Both gluons in CGC and gravitons in black holes are organized in the most efficient manner possible for each system's energy and size.

Anthropology: Early Humans Anthropology: General Archaeology: General Biology: Botany Biology: Evolutionary Biology: General Ecology: Animals Geoscience: Environmental Issues Paleontology: Climate
Published

Genome research: Origin and evolution of vine      (via sciencedaily.com) 

Cultivation and growth of grapevines have strongly influenced European civilizations, but where the grapevine comes from and how it has spread across the globe has been highly disputed so far. In an extensive genome project, researchers have determined its origin and evolution from the wild vine to today's cultivar by analyzing thousands of vine genomes collected along the Silk Road from China to Western Europe.

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

'Terminator zones' on distant planets could harbor life      (via sciencedaily.com) 

In a new study, astronomers describe how extraterrestrial life has the potential to exist on distant exoplanets inside a special area called the 'terminator zone,' which is a ring on planets that have one side that always faces its star and one side that is always dark.

Anthropology: Cultures Anthropology: General Archaeology: General
Published

Cyprus's copper deposits created one of the most important trade hubs in the Bronze Age      (via sciencedaily.com) 

The coveted metal copper and a sheltered location turned the Cypriot village of Hala Sultan Tekke into one of the most important trade hubs of the Late Bronze Age. Recent excavations confirm the importance of the Bronze Age city in the first period of international trade in the Mediterranean.

Anthropology: Cultures Anthropology: General Archaeology: General Geoscience: Geography Paleontology: Fossils
Published

Indigenous Ashaninka DNA helps geneticists write new chapters of pre-colonial history in South America      (via sciencedaily.com) 

Geneticists have written new chapters in the reconstruction of pre-colonial Americas history after using DNA from the indigenous Ashaninka people from Amazonian Peru. They have discovered previously unexpected levels of genetic variation in this group and uncovered a strong hint that these people were involved in a South-to-North migration that led to the transition from an archaic to ceramic culture in the Caribbean islands.

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

Evidence that Venus is volcanically active      (via sciencedaily.com) 

Venus appears to have volcanic activity, according to a new research paper that offers strong evidence to answer the lingering question about whether Earth's sister planet currently has eruptions and lava flows.

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

Remains of a modern glacier found near Mars' equator implies water ice possibly present at low latitudes on Mars even today      (via sciencedaily.com) 

Scientists revealed the discovery of a relict glacier near Mars' equator. Located in Eastern Noctis Labyrinthus at coordinates 7° 33' S, 93° 14' W, this finding is significant as it implies the presence of surface water ice on Mars in recent times, even near the equator. This discovery raises the possibility that ice may still exist at shallow depths in the area, which could have significant implications for future human exploration.