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Categories: Archaeology: General, Space: The Solar System

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Archaeology: General
Published

Olive trees were first domesticated 7,000 years ago, study finds      (via sciencedaily.com) 

A new study has unraveled the earliest evidence for domestication of a fruit tree, researchers report. The researchers analyzed remnants of charcoal from the Chalcolithic site of Tel Zaf in the Jordan Valley and determined that they came from olive trees. Since the olive did not grow naturally in the Jordan Valley, this means that the inhabitants planted the tree intentionally about 7,000 years ago.

Space: Structures and Features Space: The Solar System
Published

Dead star's cannibalism of its planetary system is most far-reaching ever witnessed      (via sciencedaily.com) 

The violent death throes of a nearby star so thoroughly disrupted its planetary system that the dead star left behind -- known as a white dwarf -- is sucking in debris from both the system's inner and outer reaches, astronomers report.

Archaeology: General
Published

Unique Viking shipyard discovered at Birka      (via sciencedaily.com) 

Archaeologists have located a unique Viking Age shipyard site at Birka on Björkö in Lake Mälaren. The discovery challenges previous theories about how the maritime activities of the Viking Age were organized.

Archaeology: General
Published

Origins of the Black Death identified      (via sciencedaily.com) 

The Black Death, the biggest pandemic of our history, was caused by the bacterium Yersinia pestis and lasted in Europe between the years 1346 and 1353. Despite the pandemic's immense demographic and societal impacts, its origins have long been elusive. Now, scientists have obtained and studied ancient Y. pestis genomes that trace the pandemic's origins to Central Asia.

Space: The Solar System
Published

No signs (yet) of life on Venus      (via sciencedaily.com) 

The unusual behavior of sulphur in Venus' atmosphere cannot be explained by an 'aerial' form of extra-terrestrial life, according to a new study.

Space: Structures and Features Space: The Solar System
Published

Simulations reveal hydrodynamics of planetary engulfment by expanding star      (via sciencedaily.com) 

A new study using hydrodynamical simulations reveals the forces acting on a planet when it is swallowed by an expanding star. The results show that the interactions of a substellar body (a planet or brown dwarf) with the hot gas in the outer envelope of a sun-like star can lead to a range of outcomes depending on the size of the engulfed object and the stage of the star's evolution. The dynamics and possible outcomes of planetary engulfment are poorly understood, but it is thought to be a relatively common fate for planetary systems.

Space: The Solar System
Published

Scientists release first analysis of rocks plucked from speeding asteroid      (via sciencedaily.com) 

Scientists have now begun to announce the first results from the analysis of a handful of dirt that Hayabusa2 managed to scoop off the surface of a speeding asteroid. What they found suggests that this asteroid is a piece of the same stuff that coalesced into our sun four-and-a-half billion years ago.

Archaeology: General
Published

Wreck of historic royal ship discovered off the English coast      (via sciencedaily.com) 

A royal shipwreck has been discovered off the English coast. The wreck is of one of the most famous ships of the 17th century -- The Gloucester -- which sank 340 years ago while carrying the future King of England, James Stuart. Since running aground on a sandbank on May 6, 1682, the wreck has lain half-buried on the seabed, its exact whereabouts unknown. It has now been found.

Anthropology: Early Humans Archaeology: General
Published

Bioarchaeological evidence of very early Islamic burials in the Levant      (via sciencedaily.com) 

A new study combining archaeological, historical and bioarchaeological data provides new insights into the early Islamic period in modern-day Syria. The research team was planning to focus on a much older time period but came across what they believe to be remains of early Muslims in the Syrian countryside.

Archaeology: General
Published

Pre-historic Wallacea: A melting pot of human genetic ancestries      (via sciencedaily.com) 

The Wallacean islands of present-day Eastern Indonesia have a long history of occupation by modern humans. Notably, the maritime expansion of Austronesian speakers into Wallacea left archaeological traces of a Neolithic lifestyle and a genetic imprint still detectable in Eastern Indonesians today. To gain further insights into Wallacea's settlement history, scientists sequenced and analyzed sixteen ancient genomes from different islands of Wallacea, finding evidence for repeated genetic admixtures starting at least 3,000 years ago.

Space: Structures and Features Space: The Solar System
Published

Particle accelerator region revealed inside a solar flare      (via sciencedaily.com)     Original source 

A new study offers direct evidence showing where near-light speed particle acceleration occurs inside the largest explosion known in the solar system, the solar flare.

Space: Exploration Space: The Solar System
Published

Bacterial cellulose could enable microbial life on Mars      (via sciencedaily.com) 

An international research team has investigated the chances of survival of kombucha cultures under Mars-like conditions. Kombucha is known as a drink, sometimes called tea fungus or mushroom tea, which is produced by fermenting sugared tea using kombucha cultures -- a symbiotic culture of bacteria and yeast. Although the simulated Martian environment destroyed the microbial ecology of the kombucha cultures, surprisingly, a cellulose-producing bacterial species survived.

Space: The Solar System
Published

NASA's Davinci mission to take the plunge through massive atmosphere of Venus      (via sciencedaily.com) 

NASA scientists and engineers give new details about the Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging (DAVINCI) mission, which will descend through the layered Venus atmosphere to the surface of the planet in mid-2031. DAVINCI is the first mission to study Venus using both spacecraft flybys and a descent probe.

Archaeology: General Geoscience: Earthquakes
Published

A 3400-year-old city emerges from the Tigris River      (via sciencedaily.com) 

Archaeologists have uncovered a 3400-year-old Mittani Empire-era city once located on the Tigris River. The settlement emerged from the waters of the Mosul reservoir early this year as water levels fell rapidly due to extreme drought in Iraq. The extensive city with a palace and several large buildings could be ancient Zakhiku -- believed to have been an important center in the Mittani Empire (ca. 1550-1350 BC).

Archaeology: General
Published

Famous rock art cave in Spain was used by ancient humans for over 50,000 years      (via sciencedaily.com)     Original source 

A cave in southern Spain was used by ancient humans as a canvas for artwork and as a burial place for over 50,000 years, according to a new study.

Space: The Solar System
Published

Why Uranus and Neptune are different colors      (via sciencedaily.com) 

Astronomers may now understand why the similar planets Uranus and Neptune are different colors. Researchers have now developed a single atmospheric model that matches observations of both planets. The model reveals that excess haze on Uranus builds up in the planet's stagnant, sluggish atmosphere and makes it appear a lighter tone than Neptune.

Archaeology: General
Published

Archaeologists reveal pre-Hispanic cities in Bolivia with laser technology      (via sciencedaily.com)     Original source 

Several hundred settlements from the time between 500 and 1400 AD lie in the Bolivian Llanos de Mojos savannah and have fascinated archaeologists for years. Researchers have now visualized the dimensions of the largest known settlement of the so-called Casarabe culture. Mapping with the laser technology LIDAR indicates that it is an early urbanism with a low population density -- the only known case so far from the Amazon lowlands. The results shed new light on how globally widespread and diverse early urban life was and how earlier societies lived in the Amazon.

Space: The Solar System
Published

Physicists explain how type of aurora on Mars is formed      (via sciencedaily.com) 

Researchers have learned how a type of aurora on Mars is formed. The physicists report discrete aurora form through the interaction of the solar wind and the crust at Mars' southern hemisphere.

Space: The Solar System
Published

Astronauts may one day drink water from ancient moon volcanoes      (via sciencedaily.com) 

If any humans had been alive 2 to 4 billion years ago, they may have looked up and seen a sliver of frost on the moon's surface. Some of that ice may still be hiding in craters on the lunar surface today.

Space: The Solar System
Published

Mars' emitted energy and seasonal energy imbalance      (via sciencedaily.com) 

Seasonal imbalance between the solar energy absorbed and released by the planet Mars could be a cause of the Red Planet's dust storms, according to new research. Understanding how the system works on Mars could help scientists predict how climate change could affect Earth.