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‘Magnetic monster’ sign of impending explosion in space – Cedar News



‘Magnetic monster’ sign of impending explosion in space – Cedar News

Astronomers have discovered a new type of star described as a “magnetic monster” that could one day explode and become a rare “magnetic star”.

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Using several telescopes around the world, including facilities at the European Southern Observatory (ESO), scientists have discovered HD 45166, a helium-rich star located about 3,000 light-years from Earth in the Unicorn constellation.

But what makes it so special is that it’s the only massive helium star astronomers have ever observed with a magnetic field, and a strong one at that.

HD 45166 has such a strong magnetic field (100,000 times stronger than Earth’s) that astronomers think it will become a magnet when it explodes in a supernova in about a million years.

Magnetos are a type of neutron star (the collapsed cores of some massive stars that reach the mass of our Sun in a city-sized area). It is a compact, highly magnetic galactic remnant that violently ejects bursts of energy with the most intense magnetic fields in the universe.

Little is known about the origin of magnets, but experts believe that HD 45166 may finally shed light on their origin.

André-Nicolas Cheney of NOIRLab, an astronomical research center in Tucson, Arizona, said: “For the first time, a strong magnetic field has been detected in a massive helium star. Our study indicates that this helium star will end its life as a magnet.

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NASA describes magnets as the “superheroes of the interstellar world” because they have a strong magnetic field that has baffled scientists for years.

In a typical neutron star, the magnetic field is trillions of times stronger than Earth’s, but in Earth’s magnetic field it is another 1,000 times stronger.

Therefore, magnetars are a very special type of neutron star.

However, astronomers don’t know how magnets form, how common they are, or even how they create massive magnetic fields.

Also, the magnets are very small (15 to 20 km in diameter), so even the best telescopes are too far away to see any detail on their surface.

The team made the observations using an instrument that can detect and measure magnetic fields at telescopes in Canada, France and Hawaii.

In particular, they turned their attention to HD 45166, a star known to astronomers for more than a century.

The first observations of the star were made in 1922 and astronomer Carol Jane Unger noted it as “the first of its kind” in a 1933 publication.

The lead author of the new study, Tomer Schnarr of the University of Amsterdam, said he and his colleagues suspected the star was strange, but did not think it could be the precursor to a magnet.

He added, “It was only at a later stage that the hypothesis that it might be magnetic arose and was later substantiated by new data presented in our study.”

Observations revealed that HD 45166 has an incredibly strong magnetic field of 43,000 gauss (gauss – the unit of magnetic induction).

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This makes it the only massive helium star ever detected using a magnetic field, as well as the strongest magnetic field ever detected in a star.

And 43,000 gauss is roughly 100,000 times stronger than Earth’s magnetic field (which helps compasses work and birds navigate).

A strong wind of particles blowing from HD 45166 is trapped in its magnetic field, enclosing the star in a gaseous envelope.

The team is confident that HD 45166 will become a magnet in about 1 million years, a relatively short period on the astronomical time scale given that Earth is 4.5 billion years old.

For a star to become a magnet, it must meet two conditions that scientists believe HD 45166 meets. First, it must become a neutron star when it dies. Second, it requires a sufficiently strong magnetic field, which the team certainly thinks HD 45166 will do.

According to Schner, HD 45166 has no known planets orbiting it and is unlikely to be discovered.

A new study by an international team of astronomers is published in the journal Science.

Source: Daily Mail

Responsibility for News: Cedar News is not responsible for the form or content of this news, and it expresses only the views of its source or author.

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Why not keep your toothbrush in the bathroom?



Why not keep your toothbrush in the bathroom?


We all know that maintaining oral hygiene is very important and the most important step to do this is to brush your teeth twice a day with mouthwash and floss.

But according to experts, you could be putting your oral hygiene at risk by storing your toothbrush in the bathroom.

“Storing your toothbrush in the bathroom can expose you to a variety of health problems, but the level of risk varies depending on the bathroom environment and your specific habits,” explains Dr. Payal Bhalla, principal dentist and medical director of Quest Dental.

Dr. Balla says that aerosolized bacteria can pose a problem because “when you flush the toilet, especially when the lid is open, small droplets containing bacteria and other microorganisms can splash out and settle on nearby surfaces, including your toothbrush.”

When your toothbrush is near the toilet, it’s “more likely to come into contact with airborne particles and water splashes” that “lead to contamination.”

Bathrooms can also be a humid environment, which can encourage the growth of bacteria and mold on your toothbrush.

In shared bathrooms, “there is a greater potential for cross-contamination as multiple people use the space and touch different surfaces.”

As for faecal particles, which can be on your toothbrush, Dr. Bhalla explains: “It’s possible to have faecal particles in the bathroom environment, including surfaces like your toothbrush. This can happen when toilets are cleaned. Not closing the lid, and brushing can release small droplets of faecal bacteria and other microbes into the air. .To reduce the risk of faecal particles coming into contact with your toothbrush, you can follow hygiene tips such as rinsing your toothbrush before using it, storing it upright, covering it with the toothbrush, and closing the toilet lid when washing.

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She also recommends “rinsing your toothbrush thoroughly under tap water before using it” because it “will help remove any potential contaminants. Also place your toothbrush upright in a toothbrush cup and allow it to air dry. Make sure it doesn’t touch other toothbrushes. ” To prevent cross contamination.

Dr. Bhalla emphasized the importance of changing toothbrushes “every three to four months or so” to keep them healthy and effective.

He added: “To reduce the spread of airborne particles, close the toilet lid before cleaning, use a breathable toothbrush cover to protect your toothbrush from bathroom contaminants, and regularly clean the toothbrush holder or cup to prevent bacteria and mold build-up. “

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The Day of the Big Clash… NASA on Historic Mission to Save Earth (Photos)



The Day of the Big Clash… NASA on Historic Mission to Save Earth (Photos)

02:35 PM

Wednesday, September 20, 2023

Scientists believe that September 24, 2182 marks the date that the asteroid “Bennu” will hit the Earth, so the American space agency NASA is preparing to undertake a dangerous mission to prevent a collision and save our planet from destruction.

According to NASA, this space rock passes close to our planet every 6 years, but it will have a very close encounter with Earth after another 159 years, and if it collides with us, its force will be equal to 22 nuclear bombs.

Although the odds of a cataclysmic impact are estimated at 1 in 2,700, NASA sent a spacecraft to Bennu 7 years ago to collect samples from it. They hope the data will help them prepare for an asteroid deflection mission similar to NASA’s DART mission, which successfully changed the orbit of the small asteroid moon Temorphos last year.

The asteroid samples will reach Earth this week, landing in the Utah desert on September 24.

“We’re now in the final stages of this seven-year mission,” Rich Burns, OSIRIS-REx program manager at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, told the Sunday Telegraph.

Bennu is about 492 meters wide (about half the size of the asteroid that killed the dinosaurs), so it wasn’t big enough to cause global extinction.

NASA estimated that it could have an impact 9 kilometers wide and cause devastation in a radius of about 1,000 kilometers from the crash site.

Between now and 2300 the chance of Bennu colliding with Earth is 1750.

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“The raw materials from asteroid Bennu will help shed light on how our solar system formed 4.5 billion years ago and how life began on Earth,” said Nicola Fox, associate administrator of NASA’s Science Operations Directorate in Washington.

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Hurricane Daniel: No Evidence of Epidemic Spread in Terna by Accumulated Bodies – World Health



Hurricane Daniel: No Evidence of Epidemic Spread in Terna by Accumulated Bodies – World Health

image source, Emergency Medicine and Support Center

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Rescue teams face obstacles due to the rugged topography of mountains and valleys in Terna city.

  • author, Zainab is a hyena
  • stock, BBC News

Although the bodies of those killed by Hurricane Daniel were decomposing, the organization had no evidence that they had serious infectious diseases, said Dr. Ahmed Suidan, the World Health Organization’s representative in Libya.

“This could happen if the death is associated with an infectious disease like cholera or Ebola,” Zoiden added in an interview with the BBC.

The reports came as fears began to loom on the horizon that the piles of bodies could fuel the spread of disease in Derna, one of the Libyan cities worst hit by the cyclone.

In this regard, he said that any diseases or epidemics are spread only through contaminated water, adding that “there is an urgent need to provide safe drinking water and sanitation to people to avoid spreading any diseases through water or food.”

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