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Imagine the Sahara, and an inhospitable landscape of endless sand dunes and barren rocks come to mind.
This is largely the case today, but 7,000 years ago the huge desert was a completely different place: a green world of trees and rivers and home of mega juke such as flöters and elephants.
In the past few decades, scientists have collected details of the “Green Sahara”. With the help of the old DNA of mummified remains, geneticists now find out who once lived there.
A long time ago
The mummified remains of a woman who was buried in the Takarkori Rock Shelter dates from around 7,000 years. – Archaeological mission at the Sahara/Sapienza University of Rome by Rome
The Takarkori rock protection -which is located in Trart Acacus Mountains in southwestern Libya, offers a remarkable insight into the green past past.
Archaeologists discovered the remains of 15 women and children two decades two decades ago.
The first attempts to extract the old DNA from the remains fell flat. Cool and constant conditions – the opposite of the extreme temperature fluctuations in today’s Sahara – deliver the best preserved DNA.
New techniques made it possible to sequence the genome – a complete set of genetic material – from two mummified women. The analysis revealed fascinating information about the descent of the Takarkori people and how they have adopted a lifestyle of the herd.
Exploration
Dark Energy is a mysterious force that accelerates the expansion of the universe, and it is assumed that it represents about 70% of the energy in the cosmos.
New information from the cooperation of the dark energy of spectroscopic instruments, which are called DESI, suggest that dark energy behave in an unexpected way and can even weaken over time.
The collaboration, which is now in its fourth year of the measurement of the Sky, has published its latest data stack. Although it is not the last word, the information has inspired space scientists.
“We are in the business that the universe lets us tell us how it works, and maybe the universe tells us that it is more complicated than we thought for it,” said Andrei Cucu, postdoctoral researcher at the Lawrence Berkeley National Laboratory, who manages DESI.
The heaviness defies
A SpaceX Falcon 9 rocket with the astronauts of the Fram2 mission on board the Kennedy Space Center in Florida stands out on Monday. – Gregg Nedwton/AFP/Getty Images
A SpaceX Falcon 9 rocket sent four tourists in a crew Dragon Capsule on a polar orbit that had never tried.
The Fram2 mission led the Malta resident Chun Wang, who made his lucky bitcoin mining company. He paid SpaceX an unknown sum for this trip.
Watch a video about the SpaceCraft splashdown on Friday after Wang and his crewmates the film director Jannicke Mikkelsen, who spent robotics researchers Räbea Rogge and the adventurer Eric Philips 3.5 days in low Earth orbit.
It was the first trip to space for each of the four crew members who have all the connections to the polar landing expression.
In the meantime, Suni Williams and Butch Wilmore von Nasa spoke in space for the first time after a lengthy nine -month mission. Here is what you had to say.
Dig that
For the inexperienced eye, stone tools look like ordinary rocks, but for specialists you have fascinating stories to tell.
Researchers have found that stone artifacts were made in a location in Yunnan in Yunnan in Yunnan in Yunnan in Yunnan for the first time in a style.
The discovery, which goes back to 60,000 to 50,000 years, confused archaeologists who have developed competing hypotheses to explain the stone tools.
Perhaps Neanderthals would have hiked to the east and what is now China or have reached another kind of old man who may be extremely similar in Europe.
In any case, the answer could shake what is known about human origin in the Stone Age.
Dino
The illustration of an artist shows how vegetable sauropods (left) and carnivorous megalosaurs in today’s Isle of Skye in Scotland would be moved around the same lagoon. – Tone Blakesley/Scott Reid
The ancestors of T. Rex and her plant-based prey would have gathered to drink water from a lagoon on today’s Scotlands Isle of Skye, as an analysis of newly identified dinosaur footprints.
The main study author Tone Blakesley said that he was under a small group that began in 2019 on the remote website of the Isle -Trotternal peninsula in 2019 as a doctoral student at the University of Edinburgh.
“It was very exciting,” said Blakesley. He documented a total of 131 footprints and used a drone to take thousands of overlapping pictures of the website before producing digital 3D models of the tracks. They are preserved in “Exquisite details”, he added.
The miracle
Immerse yourself in these remarkable stories.
-The discovery of a Mystery King’s grave in Abydos, Egypt, reveals new indications of a long -lost dynasty that is notorically missing in records of pharaohs that the region once ruled.
– Scientists sent a container with a cooked soybean paste to the international space station, where she returned to Earth as Miso. So it tasted.
– An uncanny spiral recently illuminated the European sky and it becomes a more common sight.
-Archeologist, who dig a massive grave in Pompeii, discovered extremely rare, almost life -size marble statues that kept the power that priests kept in the old city.
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