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Showing posts from November 3, 2019

Geneticist proposed to cross DNA of future colonists of Mars with Tardigrades

The team of the American scientist Chris Mason intends to help future colonists survive on Mars.

Geneticists see potential in the combination of human genes with other species, and to protect the health of astronauts from the consequences of a long stay in outer space.Chris Mason, a geneticist and professor of physiology and biophysics at Cornell University, investigated the effects of spaceflight on the DNA of astronauts and the potential to eliminate the negative effects of prolonged exposure in space. 

And found a non-standard solution in the genome of slow pace, tiny microorganisms that can survive even in a vacuum.

Mason led one of NASA's ten research teams that studied the twin astronauts Mark and Scott Kelly. One of them, Scott, spent almost a year on board the ISS, while Mark stayed on Earth the whole time. 

Scientists collected a lot of data during this experiment, the analysis of which continues to this day. Some of the results were discussed by Mason with colleagues at a co…

Diseases influenced the extinction of Neanderthals more than previously thought.

They may even be the main reason why we are the only human group left on the planet.

How long did Neanderthals and humans coexist?In a new study published in the journal Nature Communications, Gili Greenbaum, postdoctoral researcher in biology at Stanford University, and his colleagues propose that complex patterns of disease transmission can explain not only how modern humans were able to eliminate Neanderthals in Europe and Asia in just a few thousand years, but also, and perhaps more disconcertingly, why the end did not come sooner.
Archaeological evidence suggests that the initial encounter between Eurasian Neanderthals and a new emerging human species recently diverted from Africa, our ancestors, occurred more than 130,000 years ago in the eastern Mediterranean in a region known as the Levant.

However, it would be tens of thousands of years before the Neanderthals began to disappear and modern humans expanded beyond the Levant. Why did it take so long?

Using mathematical models of di…

Smart astronaut glove to explore the Moon, Mars and beyond

Thanks to a glove full of sensors, astronauts dressed in rigid space suits can control drones and robots by gesturing with their hands and fingers.

Imagine standing on a cliff on Mars and looking out over a rusty brown, boulder-covered plain. You bend your wrist and a drone in the distance makes a turn to the left. Or you make a few subtle movements with your fingers and a robot takes a soil sample. This should be possible with a smart glove that has recently been tested in a remote location.
New way to control.The glove was developed by Ntention, a start-up founded by Norwegian students. It contains sensors that can pick up subtle movements of the hand and fingers. They then send this information wirelessly to a portable device that can control drones and robots.

Smart glove for Mars.Initially, Ntention's smart glove was intended for use here on earth, as a new, more intuitive way of operating devices. Planet scientist Pascal Lee, however, who attended a demonstration of the glove, …

Caltech researchers developed a way to get oxygen on Mars

Although space is full of oxygen, it's mostly unsuitable for breathing.

Scientists have created a reactor that converts carbon dioxide into molecular oxygen, or O2. It will help combat climate change on Earth, and on other planets it will provide breathable air for astronauts and colonists.Oxygen is one of the main obstacles to space exploration. Earth is the only known place where this vital gas is present in sufficient quantities and it is expensive and impractical to take it with you. 

On ISS, the crew can breathe freely thanks to electrolysis, and in extreme cases there is a stock of compressed gas. But on a large scale such a scheme is impractical.

Caltech engineers have decided to find another way to produce oxygen. Their idea seems quite simple: take CO2 and remove carbon. They found that if you direct the carbon dioxide to an inert surface like gold foil, the molecules can split to form molecular oxygen and atomic carbon.

Their reactor acts in a similar way to a particle accel…

Remains of a sea "monster" that could devour a Tyrannosaurus Rex were found in Poland

They are known as Pliosaurs, and were at the top of the food chain on both land and sea during the Jurassic period.

New marine reptile fossils from the Late Jurassic of Poland were found the current Polish city of Krzy┼╝anowice. 

A team of Polish paleontologists has found the fossils of a Jurassic sea monster, known as pliosaur, ten meters long and between 145 and 163 million years old. The finding has been made in a mountainous area of ​​present-day Poland .

According to Daniel Tyborowski from the Polish Academy of Sciences, these marine reptiles were more than 10 meters long and could weigh several tons. They had large and powerful skulls and huge jaws, with large and sharp teeth. Their limbs were shaped like fins. In Europe, they had previously been discovered in a few countries, never before in Poland.

The pliosaurs were at the top of the food chain during their existence, and some grew to twice the size of a modern killer whale and weighed several dozen tons. It is believed that they…

First results of Voyager 2 probe from interstellar space

42 years of travel at 54,000 km/h, Voyager 2 enters interstellar space. 
Analysis of the data captured by the instruments of the ship sheds light on the mysterious bubble that surrounds the solar system
On November 5, 2018, it crossed the heliosphere, the protective bubble formed by the Sun's magnetic field and in which all the planets of the solar system are housed, as the scientists who studied the preliminary data from the five instruments aboard the spacecraft concluded a month later. And it began to explore an unknown territory, the kingdom of stars.

First results of Voyager 2Now, the in-depth analysis of all the measurements made by this probe - detailed in five studies published in Nature Astronomy - has allowed astronomers to confirm, first, that Voyager 2 has indeed crossed into interstellar space; it has thus become the second spacecraft to do so, after its twin, Voyager 1, succeeded in 2012. 

And, secondly, it has shed light on the heliopause, the outermost structure of the…

New Research | Everything we thought we knew about the shape of the universe might be wrong

The shape of the known universe? Is the Universe closed or open?

According to a new study published in Nature Astronomy by researchers at the universities of Manchester, the United Kingdom, La Sapienza, Italy, and John Hopkins, the universe could be a curved one, like a huge, bloating balloon, rather than a flat sheet, as current theories claim. 
Researchers have come to that conclusion after finding an "anomaly" in the cosmic microwave background (CMB), the weak echo of the Big Bang that permeates the entire universe. 

If the universe were curved, as the study points out, it would mean that, just like on Earth, we could move in a straight line and end up, at some point, being back at the starting point.

This is what is known as a "closed universe." Of course, curvature occurs on such a large scale that it is difficult to perceive it locally, from the Earth, the solar system, or even at the galactic level. It would take a much broader perspective to realize. 

The point …

The United States begins the process to withdraw from the Paris Agreement in 2020

Trump Administration notifies the United Nations of its intention to withdraw from the agreement on November 4, 2020.The Trump era | Climate change. 

The country will abandon the climate pact within a year, one day after the presidential elections.The United States Government has started on Monday the formal process to withdraw from the Paris Climate Agreement. The most significant binding pact in the face of the climate crisis that establishes a global action plan to limit global warming.

US President Donald Trump announced on June 1, 2017, that Washington would withdraw from the agreement signed in 2015 in the French capital.

Although the petition has not been able to be formalized so far due to contractual issues of the deal itself, which prevented it from withdrawing from the First three years of ratification.

"Today, the United States began the process to withdraw from the Paris Agreement. Under the terms of the agreement, the United States submitted formal notification of …

DeepMind developed an AI capable of self learning, defeating StarCraft II players

The development of artificial intelligence (AI) is being so meteoric that you can't even imagine how far it will go. 

Only two years ago it was news that AlphaGo, an AI developed by DeepMind, a subsidiary of Google, had defeated the best Go player in the world. A few months later, DeepMind demonstrated that AlphaZero AI is capable of attaining a level of superhuman mastery in chess, go and shogi, and that it also does so by learning to play against itself. 
In rapid succession, AI has been overcoming increasingly difficult challenges. Subsequent advances have been related to games where there are many players and where there is incomplete information, such as poker or Shooting video games, achieving sounded successes. 
Thanks to all this, it is increasingly clear that artificial intelligence will be able to solve real problems in changing and complex environments, which could be useful in fields such as medicine, biochemistry and who knows what else. One wonders if the AIs will write…

Euclid New European Mission To Explore The Dark Universe

It is the dark energy and dark matter that together make up 95% of the universe. Euclid, a new mission in which Europe is engaged, will help to understand them.

Euclid mission to the dark universeThis satellite of the European Space Agency (ESA), in which several Spanish companies and scientists have participated, will be launched in 2022 and will map the general structure of the universe over 10,000 million light years, revealing its expansion and growth during the last three quarters of its history.

Over the next six years, Euclid's telescope will produce a three-dimensional map of the distribution of up to 2,000 million galaxies and the associated dark matter, covering most of the Milky Way sky, according to Thales Alenia Space, the main contractor for this mission, which will generate thousands of data and images.

According to the European Space Agency, Euclid will examine billions of galaxies with "unprecedented clarity and sensitivity," providing a database for the en…

Climate change caused by a massive asteroid collision 466 million years ago

Climate change caused by a massive asteroid collision 466 million years ago. That is what geologists suggest in a new study.

Ice age 466 million years ago caused by a collision between asteroids. Geologists published tha research in the journal Science Advances.
Ice age caused by colliding asteroids?Four hundred sixty-six million years ago, a 150-kilometer diameter asteroid crashed into an unknown object somewhere between Mars and Jupiter. A team of geologists from the University of Lund in Sweden discovered that this caused a rain of space dust to fall on the Earth for 2 million years. 

This gradual rain of dust would have led to less sunlight reaching the Earth, causing the seas to freeze and an ice age to begin.

Asteroid materialThe team examined rocks in southern Sweden and near the Lynn River not far from St. Petersburg in Russia for the presence of material from space. With isotope analysis, they found relatively large amounts of meteorite material in rock layers of about 466 millio…

#teamtrees | YouTuber MrBeast (Jimmy Donaldson) 20 million trees campaign

#teamtrees is a campaign that aims to plant 20,000,000 trees. According to the authors of the project, such a measure should significantly reduce the amount of carbon dioxide in the atmosphere. However, not all agree that this strategy will be successful.
#teamtrees, Planting 20,000,000 Trees
Will 20 million trees save our planetRecently, YouTuber Jimmy Donaldson, also known as MrBeast, in collaboration with the Arbor Day Foundation, launched an unusual campaign - #TeamTrees.

Their goal is to plant millions of new trees because “reforestation has a global potential to mitigate climate change compared to all other natural climate solutions.”

They cite a 2017 study published in the journal PNAS, which states that reforestation - the process of planting new trees - is the best way to prevent the Earth’s temperature increase by more than 2 degrees Celsius.

The logic is quite simple: trees take carbon dioxide (CO2) from the air to grow and produce food through photosynthesis, and at the sam…

Anthropologists discovered eagle's claw necklace made by the last Neanderthal populations in spain

Spanish anthropologists discovered a fragment of an eagle's claw necklace made by one of the last Neanderthal populations in a cave in north-eastern Catalonia. This discovery once again indicates the presence of a common culture among different groups of these ancient people.
Study was published in the journal Science Advances.Most likely, this is the last amulet ever made by Neanderthals. It seems that these ancient people used the claws of an eagle as some kind of symbolic objects, perhaps as pendants for their necklaces, since the Middle Paleolithic times. The first Cro-Magnons to enter Europe at that time could have borrowed this tradition from them.said Antonio Rodrigues-Hidalgo of the University of Barcelona. His words are quoted by the university's press office.

For a long time, scientists believed that Neanderthals were noticeably inferior to Cro-Magnons and other early Homo sapiens in cultural development. 

Presumably, they could not speak, did not have culture, religion…

Popular Posts

SpaceX wants to send three tourists to the ISS

The US space company SpaceX wants to send three tourists to the International Space Station ISS.

It is planned that the tourists will travel to the ISS in the second half of 2021 together with a commander in the "Crew Dragon" space capsule, as the Texas start-up Axiom - SpaceX's partner company in the project - announced on Thursday.Neither of the two companies gave any indication of how much the tourists would probably have to pay for the trip. 

The costs for the launch of the Falcon 9 rocket alone, which will transport the space capsule into space, amount to around 60 million dollars (53 million euros).

In addition, the construction of a new "Crew Dragon" capsule must be financed.

­čö╣ In this respect, the ticket for the flight should cost tens of millions of dollars.

In earlier years, a total of eight tourists had already travelled to the ISS in Russian Soyuz capsules. 

The first was US entrepreneur Dennis Tito in 2001, who paid 20 million dollars for a vacati…

A new species of insect was named after Lady Gaga for being eccentric. | Kaikaia gaga

Insect was named after Lady GagaBrendan Morris, PhD at the University of Illinois, observed the behavior of about a thousand treehoppers for his research project when he suddenly noticed one female who was different from the others.

Scientists decided to name the recently discovered insect in honor of Lady Gaga for their "eccentric sense of style," NME reports.

In the scientific publication Zootaxa, he and his co-author, the entomologist Christopher Dietrich, wrote about it "an additional cross m-cu (between the fourth and fifth longitudinal veins) in the front wing, as well as a frontal-clipella form".

Morris decided to call the insect "Kaikaia gaga" so that specialists could understand what kind of species we are talking about.

"If there ever is a Lady Gaga bug, it will definitely be a treehopper bug because of its crazy horns and eccentric sense of style. They don't look like anything you've seen before," he explained.

Now Morris hopes…

How the lungs of a person suffering from Coronavirus look | Photos

Chinese doctors have published an x-ray of the lungs of a patient with the coronavirus 2019-nCoV that has spread through China and other countries.

The images published by Chinese doctors are of a 33-year-old woman who entered the hospital after presenting symptoms such as fever and cough for five days.
CT Imaging of the 2019 Novel Coronavirus (2019-nCoV) Pneumonia. …

At the time of the woman's admission, doctors noted that her body temperature had risen to 39°C and heard the sounds of her breathing were harsh in both lungs.

Doctors examine the patient for coronavirusAccording to the results of the studies published in the journal Radiology, the patient had a clear deficiency of white blood cells, as well as multiple peripheral opacities in ground-glass in both lungs.
The outbreak of coronavirus that has put the whole world on alert because of its spread in several countries emerged in the Chinese city of Wuhan at the end of December …

"Very high at the global level." WHO has changed the risk assessment for coronavirus COVID-19.

The Director-General of the World Health Organization, Tedros Adhanom Ghebreyesus, announced that the risk assessment of coronavirus at the global level has been raised to "very high". This was reported on Friday.

LIVE daily media briefing on #COVID19 with @DrTedros#coronavirus — World Health Organization (WHO) (@WHO) February 28, 2020

We have raised our assessment of the risk of spread and impact of COVID-19 to a very high level at the global level, he said during a press conference that was broadcast on Twitter by the organization.

The full briefing on #COVID19 by @DrTedros — World Health Organization (WHO) (@WHO) February 28, 2020
Chinese authorities told WHO in late December 2019 about an outbreak of unknown pneumonia in the city of Wuhan in central Hubei province. 

­čö╣ Specialists found that the pathogen is a new type of coronavirus. 

WHO recognized the outbreak as an emergency of international importance an…

Scientists propose to fight viruses with fullerenes

Fight viruses with fullerenes
Scientists from Skoltech and the Institute of Problems of Chemical Physics of the Russian Academy of Sciences have created water-soluble fullerene compounds that have valuable biological properties. The results of the study are published in the journal Chemical Communications. Thanks to this biological properties they can be used to develop effective antiviral drugs, including to suppress the human immunodeficiency virus (HIV).

Fullerenes are molecular compounds composed of three-coordinated carbon atoms, which are closed convex polyhedra. Depending on the number of atoms in the molecule, fullerenes resemble a soccer ball (C 60 ) or a rugby ball (C 70 ) in shape.

Compounds based on fullerenes have a pronounced antiviral, antibacterial, antitumor and antioxidant activity, so scientists have long viewed them as a promising basis for the creation of new drugs. Unfortunately, fullerenes are absolutely insoluble in water, which prevents their use in medicine.


Coronavirus - Satellite Images Show Abandoned Places Worldwide

Whether China, Europe or the Middle East - the new type of corona virus is spreading everywhere.

Large events are canceled, crowds are avoided. Satellites have captured images of partially abandoned infections increase with the coronavirus. In particularly badly affected countries, public life comes to a standstill. Satellite images from the US space technology company Maxar show the extent of the epidemic in a before-and-after comparison.

The Al Haram Mosque in Mecca, Saudi Arabia is the largest mosque in the world - there is usually a huge crowd here. Source: VIA REUTERS

Medications have positive results in research for the treatment of coronavirus; here are 4 possibilities

Medicine used against malaria for almost 100 years and others without approval in Brazil are among the most promising after tests.

Four drugs showed positive - but still preliminary - results in scientific research in the treatment of Covid-19, a disease caused by the new coronavirus. These drugs act at different stages of cell contamination. They are:

ChloroquineRemindLopinavir/RitonavirFavipiravirHowever, self-medication is not recommended, since research has not been fully completed and it is not yet known whether there are any side effects from use by patients infected with the coronavirus.
The study on Favipiravir was released on Wednesday (18) - it is sold commercially in Japan under the name Avigan. It was developed by Toyama Chemical, of the Fujifilm group, and has been used for over 5 years against Influenza. Its use is only authorized in Japan.
The medicine is being tested only in laboratories outside the country. When consulted, Anvisa informed that there is no request for re…

Corona Virus Update: Wuhan Virus, Coronavirus news | Covid-19

Coronavirus update: The number of deaths from the coronavirus outbreak in mainland China was 1,770 at the end of Sunday, an increase of 105 from the previous day, according to the country's National Health Commission.
At least 100 of the new deaths came from Hubei Province, the epicenter of the epidemic, the commission said Monday morning. There were 2,048 new confirmed infections nationwide, about 1,933 from Hubei alone, bringing the number of new infections to 70,548.

Coronavirus update (2/16/20, 10:41) Start.
Coronavirus: Update on the virus in Spain, China and the WHO.
France confirms the first death by the coronavirus outside Asia. The President of the People's Republic of China, Xi Jinping, gave the first orders on the outbreak of the coronavirus on January 7, 13 days before his first public comment on Covid-19, on January 20.  

Finally, today it was also revealed that China started fighting the coronavirus earlier than previously known. In China, one of the measures being ta…

What do dolphins and whales drink if there's only salt water around?

Have you ever wondered how dolphins and other marine mammals obtain fresh water when they have been in salty environments all their lives? 

They don't have a desalination unit like in the gills of marine fish, and their kidneys can't dissolve sedimentary minerals. What kind of trick did nature invent?They can't drink seawater: with dolphins and whales, nature played an evil joke. It would seem that they are surrounded by water, but the use of salt water, on the contrary, will lead to dehydration and death.
In the case of sea fish, part of the salt that comes with sea water into the body is desalinated in the gills, and the salty surpluses come out with urine.
The salty environment in which they live, constantly pulls moisture out of the fish through the skin. It's a natural process - osmosis.

Therefore, these sea creatures have to drink sea water all the time and the more salt they have in them, the more they have to drink.
Dolphins and whales can't do that. They have n…

A second case of a patient with HIV being cured is confirmed; he comes out of hiding.

So far he has been called a the "London patient", but the man decided to come out of the shadows and reveal his identity. A second case of full recovery from AIDS, but doctors warn of over optimism.
Scientists at the IrsiCaixa AIDS Research Institute have confirmed that the so-called London patient has been cured of HIV, the second in the world, because 29 months after undergoing a stem cell transplant and stopping taking antiretrovirals he is still without a trace of the virus.The study of the London patient, published this Tuesday in the magazine "The Lancet HIV", has coincided with the announcement of another patient, in this case from D├╝sseldorf (Germany), which, according to the scientists, could become the third case in history to be cured of HIV, after the London case and one in Berlin.

New online today—30 month follow-up of the London patient, providing further evidence that he is the second person to be cured of #HIV. The long-term follow-up provides insi…