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Categories: Archaeology: General, Space: The Solar System

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Anthropology: Cultures Archaeology: General
Published

Chimpanzee stone tool diversity      (via sciencedaily.com) 

Archaeologists and primatologists have shown that stone tool using chimpanzees in West Africa have distinct and recognizable material cultures.

Space: Exploration Space: The Solar System
Published

Scientist helps identify new evidence for habitability in Enceladus's ocean      (via sciencedaily.com) 

The search for extraterrestrial life just got more interesting as a team of scientists has discovered new evidence for a key building block for life in the subsurface ocean of Saturn's moon Enceladus. New modeling indicates that Enceladus's ocean should be relatively rich in dissolved phosphorus, an essential ingredient for life.

Space: Exploration Space: The Solar System
Published

Geologist proposes the number of ancient Martian lakes might have been dramatically underestimated by scientists      (via sciencedaily.com) 

Though Mars is a frozen desert today, scientists have shown that Mars contains evidence of ancient lakes that existed billions of years ago, which could contain evidence for ancient life and climate conditions on the red planet. Through a meta-analysis of years of satellite data that shows evidence for lakes on Mars, a geologist has proposed that scientists might have dramatically underestimated the number of ancient Martian lakes that once existed.

Space: Exploration Space: The Solar System
Published

NASA's Perseverance rover investigates geologically rich Mars terrain      (via sciencedaily.com) 

NASA's Perseverance rover is well into its second science campaign, collecting rock-core samples from features within an area long considered by scientists to be a top prospect for finding signs of ancient microbial life on Mars.

Space: Exploration Space: The Solar System
Published

Saturn's rings and tilt could be the product of an ancient, missing moon      (via sciencedaily.com) 

Scientists propose a lost moon of Saturn, which they call Chrysalis, pulled on the planet until it ripped apart, forming rings and contributing to Saturn's tilt.

Anthropology: Cultures Archaeology: General
Published

What ancient dung reveals about Epipaleolithic animal tending      (via sciencedaily.com) 

Tiny crystals in ancient animal dung serve as key evidence in a new analysis suggesting the possibility that hunter-gatherers at Abu Hureyra, Syria, may have tended small numbers of animals just outside their dwellings between 12,800 and 12,300 years ago.

Geoscience: Geomagnetic Storms Space: Structures and Features Space: The Solar System
Published

Where do high-energy particles that endanger satellites, astronauts and airplanes come from?      (via sciencedaily.com) 

Astrophysicists show how and when specific particles form and offers clues to questions that have troubled scientists since the 1940s.

Space: Structures and Features Space: The Solar System
Published

Could more of Earth's surface host life?      (via sciencedaily.com) 

Of all known planets, Earth is as friendly to life as any planet could possibly be -- or is it? If Jupiter's orbit changes, a new study shows Earth could be more hospitable than it is today.

Space: Structures and Features Space: The Solar System
Published

Surprise finding suggests 'water worlds' are more common than we thought      (via sciencedaily.com) 

A new study suggests that many more planets may have large amounts of water than previously thought--as much as half water and half rock. The catch? All that water is probably embedded in the rock, rather than flowing as oceans or rivers on the surface.

Archaeology: General
Published

Study unearths ancient reef structure high and dry on the Nullarbor Plain      (via sciencedaily.com) 

Researchers using advanced satellite imagery have discovered an ancient reef-like landform 'hidden' in plain view on the Nullarbor Plain, which has been preserved for millions of years since it first formed when the Plain was underwater.

Space: Structures and Features Space: The Solar System
Published

Planetary heist: Astronomers show massive stars can steal Jupiter-sized planets      (via sciencedaily.com) 

Jupiter-sized planets can be stolen or captured by massive stars in the densely populated stellar nurseries where most stars are born, a new study has found.

Space: Exploration Space: The Solar System
Published

Martian rock-metal composite shows potential of 3D printing on Mars      (via sciencedaily.com) 

A small amount of simulated crushed Martian rock mixed with a titanium alloy made a stronger, high-performance material in a 3D-printing process that could one day be used on Mars to make tools or rocket parts. The parts were made by researchers with as little as 5% up to 100% Martian regolith, a black powdery substance meant to mimic the rocky, inorganic material found on the surface of the red planet. While the parts with 5% Martian regolith were strong, the 100% regolith parts proved brittle and cracked easily. Still, even high-Martian content materials would be useful in making coatings to protect equipment from rust or radiation damage.

Space: The Solar System
Published

Making nanodiamonds out of bottle plastic      (via sciencedaily.com) 

What goes on inside planets like Neptune and Uranus? To find out, an international team conducted a novel experiment. They fired a laser at a thin film of simple PET plastic and investigated what happened using intensive laser flashes. One result was that the researchers were able to confirm their earlier thesis that it really does rain diamonds inside the ice giants at the periphery of our solar system. And another was that this method could establish a new way of producing nanodiamonds, which are needed, for example, for highly-sensitive quantum sensors.

Space: Exploration Space: The Solar System
Published

MOXIE experiment reliably produces oxygen on Mars      (via sciencedaily.com) 

The MOXIE experiment has now produced oxygen on Mars. It is the first demonstration of in-situ resource utilization on the Red Planet, and a key step in the goal of sending humans on a Martian mission.

Space: Exploration Space: The Solar System
Published

MAVEN and EMM make first observations of patchy proton aurora at Mars      (via sciencedaily.com) 

NASA's MAVEN and the United Arab Emirates' EMM missions have released joint observations of dynamic proton aurora events at Mars. By combining the observations, scientists determined that what they were seeing was essentially a map of where the solar wind was raining down onto the planet, opening new avenues for understanding the Martian atmosphere.

Archaeology: General
Published

Medieval mass burial shows centuries-earlier origin of Ashkenazi genetic bottleneck      (via sciencedaily.com) 

In 2004, construction workers in Norwich, UK, unearthed human skeletal remains that led to a historical mystery -- at least 17 bodies at the bottom of a medieval well. Using archeological records, historical documents, and ancient DNA, British researchers have now identified the individuals to be a group of Ashkenazi Jews who may have fallen victim to antisemitic violence during the 12th century. Their findings shed new light on Jewish medical history in Europe.

Space: Exploration Space: The Solar System
Published

The sands of Mars are green as well as red, rover Perseverance discovers      (via sciencedaily.com) 

The accepted view of Mars is red rocks and craters as far as the eye can see. That's much what scientists expected when they landed the rover Perseverance in the Jezero Crater, a spot chosen partly for the crater's history as a lake and as part of a rich river system, back when Mars had liquid water, air and a magnetic field. What the rover found once on the ground was startling: Rather than the expected sedimentary rocks -- washed in by rivers and accumulated on the lake bottom -- many of the rocks are volcanic in nature. Specifically, they are composed of large grains of olivine, the muddier less-gemlike version of peridot that tints so many of Hawaii's beaches dark green.

Space: Exploration Space: The Solar System
Published

First underground radar images from Mars Perseverance Rover reveal some surprises      (via sciencedaily.com) 

NASA's Perseverance landed on Mars in February 2021 and has been gathering data on the planet's geology and climate and searching for signs of ancient life. The rover's subsurface radar experiment has returned images showing unexpected variations in rock layers beneath the Jezero crater. The variations could indicate past lava flows or possibly a river delta even older than the one currently being explored on the crater floor.

Anthropology: Cultures Archaeology: General
Published

The Southern Arc and its lively genetic history      (via sciencedaily.com) 

A vast paleogenetic study reveals insights on migration patterns, the expansion of farming and language development from the Caucasus over western Asia and Southern Europe from the early Copper Age until the late middle ages.

Archaeology: General
Published

DNA analysis shows Griffin Warrior ruled his Greek homeland      (via sciencedaily.com) 

Using new scientific tools, archaeologists discovered that an ancient Greek leader known today as the Griffin Warrior likely grew up around the seaside city he would one day rule. The findings are part of three new studies that examined the ancient DNA of the Griffin Warrior and 726 other people who lived before and during the Bronze Age to learn more about their origins and movements across three continents surrounding the Mediterranean Sea.