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Saturn’s rings… yes, will disappear by 2025, but another reason is science

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Saturn’s rings… yes, will disappear by 2025, but another reason is science

The most important features of Saturn are undoubtedly its rings, which are the main target of all amateur astronomers around the world with their small and large telescopes. Earth.

Saturn’s rings consist mainly of ice and rock and the moon orbiting between the rings is only 8 kilometers in diameter.

“Daphnis” is one of Saturn’s moons that orbits between its rings and is only 8 kilometers in diameter (NASA).

Saturn’s rings.. will disappear, but not now

In 2018, a study by scientists at the US National Aeronautics and Space Administration (NASA) caught the world’s attention when they confirmed that Saturn’s delicate rings are eroding day by day.

The study indicated that Saturn’s rings are relatively young, only a few hundred million years old, and that they are gradually losing mass through various processes, such as ice particles falling from the rings. Rings. Atmosphere Along Saturn’s magnetic field lines.

Another process is by microscopic meteorites eroding the rings, creating dust and debris that can escape the rings. These events reduce the mass and brightness of the rings over time.

A Hubble image taken in May 1995 shows the planet’s rings moving away from us, seemingly lost or disappearing (Hubble Telescope)

What will happen in 2025?

Recently, a rumor spread in the world media that Saturn’s rings will disappear in 2025, and some have linked this to a study published by NASA, but this is completely false. In fact, Saturn’s rings will disappear in 2025, but they will reappear several years later, in 2027 or 2028, for example, nothing more than a change in our view of Saturn’s Earth.

Because of Saturn’s tilt on its axis, the shape of its rings changes every year very slowly relative to us on Earth, over a cycle of about 29 years.

To clarify this point somewhat, consider an image of Saturn released by the Hubble telescope between December 1994 and May 1995, where Saturn appears in the first image and its rings are completely tilted, but our perspective has changed. The rings looked like they didn’t exist.

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A Hubble image from 2001 shows the shape of the planet changing over 4 consecutive years (Hubble Telescope).

In another image released in 2001, astronomers with the Hubble Space Telescope showed how Saturn’s shape changes over four years. In one view, the rings appeared fully inflated, then quickly receded. This is normal and repeats itself every 29. years.

That means there are no problems with Saturn’s rings at the moment, and if you have a small or medium telescope, it’s a good idea to think about Saturn’s magnificent rings these days and try to experience them before they disappear. Our vision is complete, then reappears.

Evidence : Conversation + Websites + NASA + European Space Agency

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5 Foods That Can Help You Stay Positive and Fight Depression, Especially Eggs

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5 Foods That Can Help You Stay Positive and Fight Depression, Especially Eggs


By Anas al-Banna

Saturday, December 2, 2023 at 12:00 AM

With winter approaching and the seasons fluctuating, many are depressed, especially by things including rain and lack of sunrise, the website says “Health scenesWe show how diet can improve mental health and which foods can help manage it Depression By improving a person’s mood.

The connection between food and your mood

If you eat healthy, you will be healthy; Otherwise, you will have health problems, and when it comes to mental health, nutrition plays an important role.

Foods that help fight depression

Add these foods to your diet to fight depression:

1. Walnut

Walnuts are one of the most important nuts for brain health because they help improve cognitive health. Their high levels of antioxidants and vitamins improve mental alertness and fight depression..

2. Avocado

Avocados contain healthy fats that help improve cognitive function, memory, and concentration. Apart from that, avocados also contain tryptophan, which helps increase levels of serotonin, which is associated with the hormone of happiness.

3. Berry

The high levels of antioxidants in berries help protect the brain from stress, anxiety and depression, and have been shown to improve mood and cognition..

4. Broccoli

Broccoli helps keep the memory sharp due to its high amount of choline, and helps reduce depression and support a good mood. .

5. Eggs

Eggs are rich in choline, which is one of the most important neurotransmitters in managing stress and depression..



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The World Health Organization has tracked the BA.2.86 strain and classified it as “of concern”.. What is the reason?

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The World Health Organization has tracked the BA.2.86 strain and classified it as “of concern”.. What is the reason?

Dubai, United Arab Emirates (CNN) — The World Health Organization has classified the BA.2.86 coronavirus variant and its mutations as “of concern,” although the risk posed by the strain, the organization said, remains low.

The organization had previously tracked this mutant as “under surveillance.”

XBB.1.5, XBB.1.6 and EG.5 are other variants classified as “interesting”. There are no current variations of the concern, which is the highest classification in the company.

BA.2.86 first appeared in the United States in August and is considered the third most common variant, responsible for 1 in 11 new cases of “Covid-19” and prevention. According to the agency’s monitoring, although the growth of the strain was exaggerated in the first few weeks after its emergence, the rate of spread seems to have tripled in the last two weeks.

But if BA.2.86 is not that important, why is WHO updating it?

“We have seen a slow and steady increase in its detection around the world,” explained Dr. Maria van Kerkov, technical lead for COVID-19 at the World Health Organization, in a video circulated on social media. He continued: “By describing it as a variant of interest, it helps strengthen the surveillance of this type of variant around the world and prompts research to understand whether it causes more severe disease or is more immune evasive.

Slow growth

BA.2.86, called Pirola by some virus watchers, sparked a wave of research when it came to the world’s attention this summer because it shared many of the characteristics that led to the spread of the original Omicron strain’s BA.1 variant. The coronavirus, and its rapid spread, has led to… increasing hospitalizations and deaths worldwide.

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With more than 30 mutations in its spike proteins, BA.2.86 is genetically different from previous mutations of the virus responsible for Covid-19, which scientists fear could contribute to another pandemic by completely evading vaccine immunity.

However, the puzzle is that the BA.2.86 does not follow the same path as the Omicron. Some studies have shown that with the development of all its new mutations, this mutation has lost its ability to affect our cells, allowing their growth to slow down.

Other studies have shown that it does not completely evade the body’s immune system, and the current “Covid-19” vaccine, which has mechanisms to fight the XBB.1.5 mutant, provides some protection from it, which is good news.

But mutant hunters have tempered this hope, warning that the original virus BA.2.86 is still evolving and one of its variants could once again become a force to be reckoned with.

Computational virologist at Fred Hutchinson Cancer Center in Seattle, USA. Jesse Bloom pointed out that, in fact, BA.2.86 is constantly evolving and sending mutations out into the world very quickly.

In a study conducted by researchers at Columbia University and China, Bloom pointed out that the JN.1 mutant has a change in its genetic code that helps it escape our immune defenses, although the difference is modest: the ability of our antibodies to neutralize the virus is reduced by about twofold.

However, this change was enough to give it a growth advantage over its predecessor.

“Based on the speed of its spread, we can see that the number of JN.1 is increasing faster than the original BA.2.86,” Bloom said.

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At the same time, the distantly related XBB family of viruses, which includes several fastidious and evasive strains such as HV.1, is expanding its range.

According to the Centers for Disease Control and Prevention, HV.1 is currently the dominant strain in the United States and causes disease in 1 in 3 new cases of COVID-19.

Lack of data Make predictions difficult

Dr. Michael Osterholm, director of the Center for Infectious Disease Research and Policy at the University of Minnesota, said, “Many countries have seen an increase in cases overseas as PA2.86 and JN1 spread.

In Europe, this disease is associated with many countries, but in other countries it does not happen, what do we understand from that?

Europe is seen as a good barometer for what the coronavirus might do to the US, but immunity, behavior and surveillance vary from country to country, making it hard to know what will happen there.

A big problem is the lack of data, said Dr. Peter Hodes, a pediatric infectious disease specialist at Baylor College of Medicine and Texas Children’s Hospital who developed the Covid-19 vaccine.

“It’s harder than ever to know what’s going on because we’re not doing much monitoring anymore, so we have to rely on forecasts and a combination of factors like wastewater, hospitalizations and the percentage of positive cases,” Hatz explained.

However, Hotez noted that there is reason to be cautious in the coming weeks, given the signs we may see.

Hospitalization rates have started to rise again as the coronavirus recedes.

According to the US Centers for Disease Control and Prevention, last week, more than 18,000 Americans were hospitalized due to Covid-19, an increase of about 10% from the previous week.

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Nationally, levels of coronavirus in wastewater are increasing and appear to be increasing, which could increase the number of cases.

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News of international concern over targeting of health facilities in Gaza and Israel continues arrest of 26 medical workers

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News of international concern over targeting of health facilities in Gaza and Israel continues arrest of 26 medical workers

The United Nations expressed its concern over attacks on health facilities in the Gaza Strip and the West Bank, with the Palestinian Ministry of Health in the besieged territory announcing that Israel is still detaining 26 medical workers.

UN spokesman Stephane Dujarric said after the World Health Organization reported 203 attacks on health facilities in Gaza and 224 in the occupied West Bank since the “al-Aqsa flood” began on October 7. The aforementioned attacks. Health facilities should never be used.” In conflict.”

Dujarric responded to the criticism “We are subject to 360-degree criticism (from all sides) because of the words we use or don’t use,” he said, according to United Nations reports on Gaza.

Speaking about the general situation in Gaza, he explained that despite the humanitarian ceasefire, “there is still no progress in water access to northern Gaza,” adding that “water production facilities are still closed due to fuel shortages and damage caused by attacks. .”

Dujarric said his organization received data on the death toll from the Ministry of Health in Gaza and believed the reported numbers were correct. He pointed out that the United Nations welcomed and continued to call for the extension of the humanitarian ceasefire in Gaza. A ceasefire for humanitarian reasons.

The World Health Organization confirmed that since the start of the war on October 7, Israel has documented 427 attacks on health facilities in the besieged Gaza Strip and the occupied West Bank.

He explained that the attacks killed 560 people in Gaza and 6 in the West Bank, and wounded 718 in Gaza and 40 in the West Bank.

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Targeting medical personnel

On the other hand, the Palestinian Ministry of Health said that the Israeli occupation is still detaining 26 health workers led by the director general of Al-Shifa Medical Complex, Muhammad Abu Salamiyyah, and called on all international organizations to “take serious and immediate action”. for their liberation.”

On November 14, the Israeli army attacked the al-Shifa medical complex west of Gaza City, after besieging it for several days and clashes with nearby protesters.

On November 25, the World Health Organization announced that it had no information on the fate of the director of Al-Shifa Hospital, adding in a statement that “Abu Salamiya was arrested along with 5 health workers while participating in a United Nations-led event. Evacuation of patients.”

Yesterday, Wednesday, the Director General of the World Health Organization, Tedros Adhanom Ghebreyesus, warned of a health disaster in Gaza, adding, “The current living conditions and lack of sanitation in this area could cause diseases that kill a person. Israeli bombardment of the Strip resulted in many of those killed.

The international official pointed out that about 1.3 million people are currently living in shelters in Gaza, and stressed that “there is now an urgent need for a permanent ceasefire in Gaza, as this matter has become a matter of life and death for civilians.”

He explained that overcrowding, lack of food and water, lack of basic sanitation needs, poor sanitation and waste management and difficulty in accessing medicines are responsible for suffering from various diseases including acute respiratory infections, scabies and diarrhoea. Skin rashes, jaundice and other health effects and diseases.

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Since October 7, Israel has increased its blockade of Gaza, cutting off electricity and water from its residents and preventing the entry of food, medicine and fuel supplies. However, the temporary humanitarian ceasefire – which began on Friday the 24th of this month and was later extended – enabled some relief, medical and fuel aid to enter this besieged sector, but several parties confirm that this aid reaches only a small part of the population. requirements.

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