The mysterious force pushing galaxies apart might be getting weaker

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Immune cells in the skin form their ‘straps’ to prevent harmful bacteria spreading from an injury site, showing a study in mice. Researchers found that white blood cells called neutrophils form a ring of protein-rich ‘Go’ around areas where the skin has been dissolved to trap the pathogens. Neutrophils are first known as respondents for infection and injury sites, they are killed by swallowing or releasing toxins. This study suggests that after the initial attack, a second wave of neutrophil is deployed to create a viscous barrier.

Nature | Read 4 minutes

Reference: Nature paper

Fresh data has supported the discovery that dark energy – mysterious forces that distance the galaxies from each other – have weakened in billions of years. Until last year, all conclusions were corresponding to the ‘cosmological constant’ of dark energy, which means that the universe should continue to expand rapidly at a faster rate. New findings suggest that the amount of dark energy in space per cubic meter is now about 10% less than 4.5 billion years ago, which means that the cosmic expansion is now lower.

Nature | Read 5 minutes

Researchers have broken the record by sending an encryption key for quantum communication by sending an encryption key via China to South Africa from South Africa to South Africa. The fridge -shaped satellite sent laser light pulses from one roof in Beijing to the other at the Steelbosh University. Pulses formed a quantum key used to encrypse two images – one of the great walls of China showing part of the complex of the Steelbush. Known as quantum key distribution, this achievement, is from the direction of being able to be able to beam ultra-sciring messages through space between any two places on Earth, although away.

Nature | Read 5 minutes

Reference: Nature paper

Within 4 years, the Artificial Intelligence (AI) systems can beat the human computer programmer on long tasks that take months, and which they have lagged behind so far. Since 2019, the ‘task-completion time horizon’-was designed to track how long the programmers work which AI can complete with a 50% success rate-it has almost doubled in seven months. This suggests that the tasks that take humans about a month will be mastered by AIS with 50% credibility by 2029, or possibly soon. Professor of management Joshua Gans says, how AI will be used, uncertainty means that this type of extractation is not always useful.

Nature | Read 5 minutes

Reference: Arxiv preprint (Not a colleague review)

Characteristics and opinions

In the last five years, around 9,000 satellites were launched in the Earth’s orbit, which took over 2,000 to 11,000. Out of those new people, more than 7,000 entrepreneurs are related to the Starlink System run by SpaceX, the company of Elon Musk. The spacecraft plays an important role in connecting people around the world, but their growing number is giving astronomers a headache by making lines in images and interfering with comments. Now attention is loss control. Astronomers are working with satellite companies to create a centralized tracking system, develop technologies that can de-creates their images and re-direct signals that can overwhelm the radio telescope.

Nature | Read 10 minutes

About a court case in Australia The fate of plestocin human remains is taken from the dry bed of Mungo Lake In the 1960s and 1970s, one is coming on the head. The name of the nickname ‘Mungo Lady’ shows evidence of one of the oldest-world crematoriums in the world, while ‘Mungo Man’ is one of the first human skeletons ever. Bones are the remains of tribal Australians and – with many more from the same region – have come to represent the history of the first nation and how science has sometimes disrespecting its rights, behaving as scientific materials without permission to its ancestors. In 2022, this process began rebelling the remains – but disagreement, between the two scientists and members of the tribal Australian communities, whether this was the right decision.

ABC News | Read 14 minutes

Week image

Physicists have created the most young light emitting diode (LED) display ever. The above image was shown on a monochromatic display with a pixel less than about 100 micrometer of a human hair width. If he was not quite small, the team made a tinier LED. The pixels in this Tensi display were just 90 nanometers wide – about the size of a virus, and the most powerful optical microscope was also very small. (Nature | Read 3 minutes)

Reference: Nature paper

Today i’m catching on science-fi drama SeparationThe fans of the series are left with a complete host of questions at the end of each episode – as what is going on on Earth? TV journalist Nick Juarez had another question in the mind: How much is the employees of the shady lumon company paid for their “mysterious and important” activities? If you were also thinking, then you are in luck. Juarez has worked it: Around US $ 125,800 each year.

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Jacob Smith, Associate Editor, Nature Briefing

With contribution by Flora Graham

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