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Huge ancient city found in the Amazon

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Scientists found evidence of 6,000 mounds thought to be the bases for ancient homes (BBC)

A huge ancient city has been found in the Amazon, hidden for thousands of years by lush vegetation.

The discovery changes what we know about the history of people living in the Amazon. The houses and plazas in the Upano area in eastern Ecuador were connected by an astounding network of roads and canals.

The area lies in the shadow of a volcano that created rich local soils but also may have led to the destruction of the society.

While we knew about cities in the highlands of South America, like Machu Picchu in Peru, it was believed that people only lived nomadically or in tiny settlements in the Amazon. “This is older than any other site we know in the Amazon. We have a Eurocentric view of civilisation, but this shows we have to change our idea about what is culture and civilisation,” says Prof Stephen Rostain, director of investigation at the National Centre for Scientific Research in France, who led the research.

“It changes the way we see Amazonian cultures. Most people picture small groups, probably naked, living in huts and clearing land – this shows ancient people lived in complicated urban societies,” says co-author Antoine Dorison. The city was built around 2,500 years ago, and people lived there for up to 1,000 years, according to archaeologists.

It is difficult to accurately estimate how many people lived there at any one time, but scientists say it is certainly in the 10,000s if not 100,000s.

The archaeologists combined ground excavations with a survey of a 300 sq km (116 sq mile) area using laser sensors flown on a plane that could identify remains of the city beneath the dense plants and trees.

Graphic showing map of settlements connected by roads

This LiDAR technology found 6,000 rectangular platforms measuring about 20m (66 ft) by 10m (33 ft) and 2-3m high. They were arranged in groups of three to six units around a plaza with a central platform.

The scientists believe many were homes, but some were for ceremonial purposes. One complex, at  Kilamope, included a 140m (459 ft) by 40m (131 ft) platform.

They were built by cutting into hills and creating a platform of earth on top.

Roads, paths and canals were found connecting the platforms suggesting a large area was occupied
Roads, paths and canals were found connecting the platforms suggesting a large area was occupied (BBC)

A network of straight roads and paths connected many of the platforms, including one that extended 25km (16 miles).

Dr Dorison said these roads were the most striking part of the research. “The road network is very sophisticated. It extends over a vast distance, everything is connected. And there are right angles, which is very impressive,” he says, explaining that it is much harder to build a straight road than one that fits in with the landscape.

He believes some had a “very powerful meaning”, perhaps linked to a ceremony or belief.

The scientists also identified causeways with ditches on either side which they believe were canals that helped manage the abundant water in the region.

There were signs of threats to the cities – some ditches blocked entrances to the settlements, and may be evidence of threats from nearby people.

Researchers first found evidence of a city in the 1970s, but this is the first time a comprehensive survey has been completed, after 25 years of research.

It reveals a large, complex society that appears to be even bigger than the well-known Mayan societies in Mexico and Central America. “Imagine that you discovered another civilisation like the Maya, but with completely different architecture, land use, ceramics,” says José Iriarte, a professor of archaeology at University of Exeter, who was not involved in this research.

Some of the findings are “unique” for South America, he explains, pointing to the octagonal and rectangular platforms arranged together. The societies were clearly well-organised and interconnected, he says, highlighting the long sunken roads between settlements.

Not a huge amount is known about the people who lived there and what their societies were like. Pits and hearths were found in the platforms, as well as jars, stones to grind plants and burnt seeds.

The Kilamope and Upano people living there probably mostly focussed on agriculture. People ate maize and sweet potato, and probably drank “chicha”, a type of sweet beer.

Prof Rostain says he was warned against this research at the start of his career because scientists believed no ancient groups had lived in the Amazon. “But I’m very stubborn, so I did it anyway. Now I must admit I am quite happy to have made such a big discovery,” he says.

The next step for the researchers is understanding what lies in an adjoining 300 sq km (116 sq mile) area not yet surveyed.

(BBC)



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Nasa ‘Earthrise’ astronaut dies at 90 in plane crash

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Apollo 8 astronaut Bill Anders, who snapped one of the most famous photographs taken in outer space, has died at the age of 90.

Officials say a small plane he was flying crashed into the water north of Seattle, Washington.

Anders’ son Greg confirmed that his father was flying the small plane, and that his body was recovered on Friday afternoon.  “The family is devastated. He was a great pilot. He will be missed,” a statement from the family reads.

Anders – who was a lunar module pilot on the Apollo 8 mission – took the iconic Earthrise photograph, one of the most memorable and inspirational images of Earth from space.

Taken on Christmas Eve during the 1968 mission, the first crewed space flight to leave Earth and reach the Moon, the picture shows the planet rising above the horizon from the barren lunar surface.

Anders later described it as his most significant contribution to the space programme.

Nasa Earth peaking out behind the Moon in iconic photo

The image is widely credited with motivating the global environmental movement and leading to the creation of Earth Day, an annual event to promote activism and awareness of caring for the planet.

Speaking of the moment, Anders said: “We came all this way to explore the Moon, and the most important thing that we discovered was the Earth.”

Officials said on Friday that Anders crashed his plane around 11:40PDT (1940BST).

The US National Transportation Safety Board (NTSB) said the 90-year-old was flying a Beechcraft A A 45 – also known as a T-34. The agency said that the plane crashed about 80ft (25m) from the coast of Jones Island.

Anders also served as the backup pilot to the Apollo 11 mission, the name of the effort that led to the first Moon landing on July 24, 1969.

Following Anders’ retirement from the space programme in 1969, the former astronaut largely worked in the aerospace industry for several decades. He also served as US Ambassador to Norway for a year in the 1970s.

But he is best remembered for the Apollo 8 mission and the iconic photograph he took from space.

“In 1968, during Apollo 8, Bill Anders offered to humanity among the deepest of gifts an astronaut can give. He traveled to the threshold of the Moon and helped all of us see something else: ourselves,” Nasa Administrator Bill Nelson said in a statement.

Mark Kelly, a former astronaut who now serves as a US Senator for the state of Arizona, said in a post on X, formerly Twitter, that Anders “inspired me and generations of astronauts and explorers. My thoughts are with his family and friends”.

[BBC]

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China’s Chang’e-6 lifts off from far side of Moon with rock samples

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This undated handout photo taken by the China National Space Administration (CNSA) and released on June 4, 2024 shows a general view of of the surface of the Moon, which was shot by the panoramic camera attached to the Chang'e-6 lunar probe before it started collecting samples

A Chinese spacecraft carrying rock and soil samples from the far side of the Moon has lifted off from the lunar surface to start its journey back to Earth, according to state media.

The achievement on Tuesday is a world first and the latest leap for Beijing’s decades-old space programme, which aims to send a crewed mission to the Moon by 2030.

The Xinhua News Agency, citing the China National Space Administration (CNSA), said that the ascender of the Chang’e-6 probe took off at 7:38am local time on Tuesday (23:38 GMT) and entered a preset orbit around the moon.

It described the move as “an unprecedented feat in human lunar exploration history”.

The Chang’e-6 probe was launched last month and its lander touched down on the far side of the Moon on Sunday. It used a drill and robotic arm to dig up soil on and below the Moon’s surface, according to Xinhua.

After successfully gathering its samples, the Chang’e-6 unfurled China’s national flag for the first time on the far side of the Moon, it said.

The agency cited the CNSA as saying that the spacecraft stowed the samples it had gathered in a container inside the ascender of the probe as planned.

[Aljazeera]

 

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China says its spacecraft lands on Moon’s far side

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The Chang'e 6 mission launched from China's Wenchang Spaceport in May (BBC)

China says its uncrewed craft has successfully landed on the far side of the Moon – an unexplored place almost no-one tries to go.

The Chang’e 6 touched down in the South Pole-Aitken Basin at 06:23 Beijing time on Sunday morning (22:23 GMT Saturday), the China National Space Administration (CNSA) said.

Launched on 3 May, the mission aims to collect precious rock and soil from this region for the first time in history.  The probe could extract some of the Moon’s oldest rocks from a huge crater on its South Pole.

The landing was fraught with risks, because it is very difficult to communicate with spacecraft once they reach the far side of the Moon. China is the only country to have achieved the feat before, landing its Chang’e-4 in 2019.

After launching from Wenchang Space Launch Center, the Chang’e 6 spacecraft had been orbiting the Moon waiting to land.  The lander component of the mission then separated from the orbiter to touch down on the side of the Moon that faces permanently away from Earth.

During the descent, an autonomous visual obstacle avoidance system was used to automatically detect obstacles, with a visible light camera selecting a comparatively safe landing area based on the brightness and darkness of the lunar surface, the CNSA was quoted as saying by state-run Xinhua news agency.

The lander hovered about 100m (328ft) above the safe landing area, and used a laser 3D scanner before a slow vertical descent.  The operation was supported by the Queqiao-2 relay satellite, the CNSA said.

Chinese state media described the successful landing as an “historic moment”.  The state broadcaster said “applause erupted at the Beijing Aerospace Flight Control Center” when the Chang’e landing craft touched down on the Moon early on Sunday morning.

The lander should spend up to three days gathering materials from the surface in an operation the CNSA said would involve “many engineering innovations, high risks and great difficulty”.  “Everyone is very excited that we might get a look at these rocks no-one has ever seen before,” explains Professor John Pernet-Fisher, who specialises in lunar geology at the University of Manchester.

He has analysed other lunar rock brought back on the American Apollo mission and previous Chinese missions.  But he says the chance to analyse rock from a completely different area of the Moon could answer fundamental questions about how planets form.

Most of the rocks collected so far are volcanic, similar to what we might find in Iceland or Hawaii.  But the material on the far side would have a different chemistry . “It would help us answer those really big questions, like how are planets formed, why do crusts form, what is the origin of water in the solar system?” the professor says.

The mission aims to collect about 2kg (4.4lb) of material using a drill and mechanical arm, according to the CNSA.

The South Pole–Aitken basin, an impact crater, is one of the largest known in the solar system.

From there, the probe could gather material that came from deep inside the lunar mantle – the inner core of the Moon – Prof Pernet-Fisher says.

The Moon’s South Pole is the next frontier in lunar missions – countries are keen to understand the region because there is a good chance it has ice.

Getty Images Chinese moon mission lander

The capsule in the last Chinese moon mission, Chang’e 5, brought back soil and rocks in 2020  (BBC)

Access to water would significantly boost the chances of successfully establishing a human base on the Moon for scientific research.

If the mission succeeds, the craft will return to Earth with the precious samples on board a special return capsule.

The material will be kept in special conditions to try to keep it as pristine as possible.

Scientists in China will be given the first chance to analyse the rocks, and later researchers around the world will be able to apply for the opportunity too.

This is the second time China has launched a mission to collect samples from the Moon.

In 2020 Chang’e 5 brought back 1.7kg of material from an area called Oceanus Procellarum on the Moon’s near side.

China is planning three more uncrewed missions this decade as it looks for water on the Moon and investigates setting up a permanent base there.

Beijing’s broader strategy aims to see a Chinese astronaut walk on the moon by around 2030.

The US also aims to put astronauts back on the moon, with Nasa aiming to launch its Artemis 3 mission in 2026.

(BBC)

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