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How to Watch the ‘Green Comet’ in Night Skies

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How to Watch the ‘Green Comet’ in Night Skies

A green-hued comet from the outer photo voltaic system is ready to swing by Earth’s neighborhood within the coming days for the primary time in 50,000 years.

The comet has been steadily gaining brightness and can make its closest method on Feb. 2, when it comes inside 26.4 million miles of the planet — 110 instances the space to the moon. From the Northern Hemisphere, the comet is prone to be faintly seen to the bare eye.

However you don’t have to attend till February to identify this uncommon customer. The approaching weekend might supply favorable viewing alternatives with a pair of binoculars when the brand new moon creates darker skies.

The comet is named C/2022 E3 (Z.T.F.) as a result of astronomers found it in March 2022 utilizing a telescope on Palomar Mountain in California referred to as the Zwicky Transient Facility (or Z.T.F.).

On the time, the cosmic interloper was simply contained in the orbit of Jupiter and roughly 25,000 instances dimmer than the faintest star seen to the bare eye. However Z.T.F., with a digital camera that has a large subject of view, scans all the seen sky every night time and is well-suited to find such objects.

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Comets are clumps of mud and frozen gases, typically described by astronomers as “soiled snowballs.” Most are believed to originate from the distant, icy reaches of the photo voltaic system the place gravitational agitations typically push them towards the solar — an interplay that transforms them into attractive cosmic objects.

Once they go away their deep freeze, the warmth from the solar erodes their surfaces, and so they begin spewing gases and mud till they host a glowing core, generally known as the coma, and a flamelike tail that may stretch for hundreds of thousands of miles.

“They’re alive,” Laurence O’Rourke, an astronomer with the European House Company, stated. “Once they’re removed from the solar, they’re sleeping, and once they get near the solar, they get up.”

C/2022 E3 (Z.T.F.), for instance, is now glowing inexperienced as a result of ultraviolet radiation from the solar is absorbed by a molecule within the comet referred to as diatomic carbon — that’s, two carbon atoms fused collectively. The response emits inexperienced mild.

The brightness of comets might be unpredictable. When scientists first found the article final yr, they knew solely that it had potential to be seen from Earth.

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“As a result of every comet is its personal dwelling being, you don’t know the way it’s going to react till it passes the solar,” Dr. O’Rourke stated.

Comet C/2022 E3 (Z.T.F.) made its closest method to the solar on Jan. 12, and the comet is now steadily brightening because it swings towards the Earth. Whereas the comet gained’t move us till Feb. 2, it’s already almost seen to the bare eye — an encouraging signal for viewing alternatives, stated Mike Kelley, an astronomer on the College of Maryland and the co-lead of the photo voltaic system working group on the Zwicky Transient Facility.

Nonetheless, seeing the comet might “require darkish skies and an skilled observer,” Dr. Kelly stated.

As well as, comets can at all times shock us. Typically there could be a massive explosion of gasoline and mud, and the comet may get all of the sudden brighter even after it has left the solar behind.

To catch the comet, look north.

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On Jan. 21, the night time of the brand new moon and thus the darkest skies, the comet will likely be near Draco — the dragon-shaped constellation that runs between the Massive Dipper and the Little Dipper.

Over the next nights, the comet will creep alongside the dragon’s tail. And on Jan. 30, the comet will reside immediately between the Massive Dipper’s “cup” and Polaris, the North Star. When you’re accustomed to discovering the North Star by following the 2 stars on the top of the Massive Dipper’s cup, then it’s best to have the ability to spot the comet. Merely scan that imaginary line till you see a faint smudge.

When you’re struggling, the comet may nonetheless be too faint or there may be an excessive amount of mild air pollution. Strive with a pair of binoculars.

“Even with comparatively modest binoculars, the powdery, fuzzy or smoky character of the ‘star’ should make it clear it’s a comet,” stated E. C. Krupp, the director at Griffith Observatory in Los Angeles.

A telescope will make it easier to spot the colours and finer particulars, together with the comet’s glowing coma and prolonged tail.

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For anybody dwelling above the thirty fifth parallel — think about a curving East-West line operating from North Carolina by the Texas Panhandle out to Southern California — the comet will likely be seen all night time beginning Jan. 22. However it’s comparatively low on the horizon within the early night, and it may be higher to search for the comet later within the night and even early within the morning when the comet swings larger within the sky.

Dr. Krupp recommends trying this weekend when the section of the moon is new, and it subsequently gained’t forged a glow over the sky. However the comet will change into brighter because it will get nearer to Earth and will likely be simpler to identify towards the top of the month. When you wait till then, you may need to strive early within the morning after the moon has set.

Both manner, the hunt will likely be enjoyable.

“It’s type of like trying to find some endangered species, after which it pops into view,” Dr. Krupp stated. “That actually is a charmer of an expertise.”

Comets are relics of the early photo voltaic system and will have been chargeable for seeding early Earth with the constructing blocks for all times.

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“It truly is a scenario the place we almost definitely wouldn’t exist with out their existence,” Dr. O’Rourke stated.

And but we don’t get many alternatives to check these objects, provided that just a few every year are shiny sufficient to be seen with the bare eye. As such, cometary astronomers throughout the globe will observe C/2022 E3 (Z.T.F.) over the approaching months.

“We’re in search of our photo voltaic system’s place within the universe,” stated Dr. Kelley, who will use the James Webb House Telescope to look at the comet on the finish of February. He needs to higher perceive how our planet shaped as a way to notice the situations that gave rise to life on Earth.

However Dr. Kelley and others should work rapidly. After a short look within the night time sky, it’s unclear the place C/2022 E3 (Z.T.F.) might go. As a result of these objects are so loosely certain to our photo voltaic system, the solar’s gravitational affect may pressure the comet to take one other journey round our star — maybe not returning for one more 50,000 years. Or the solar may fling the comet from the photo voltaic system completely.

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Opinion: Most older Americans who need hearing aids don't use them. Here's how to change that

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Opinion: Most older Americans who need hearing aids don't use them. Here's how to change that

Having depended on hearing aids for nearly three decades, I’m astounded by the lack of Medicare coverage for devices that can solve a problem afflicting tens of millions of older Americans.

Nearly two-thirds of Americans over age 70 have some degree of hearing loss, and over half of those 75 and older experience impairment serious enough to be considered disabling. But most don’t wear hearing aids.

Because the legislation that created Medicare nearly 60 years ago specifically excluded hearing aids, those who rely on the program’s traditional coverage must pay for them out of pocket. That expense is among the chief barriers to wider use of the devices.

Age-related hearing loss impedes basic communication and the relationships that depend on it. Expanded access to hearing aids could therefore do no less than enable more older Americans to establish and maintain the social connections that are essential to a meaningful life.

Hearing loss is like an invisible, muffling curtain that falls in front of anyone speaking. Asking people to repeat themselves can yield irritated and hurtful responses. And it’s hopeless to ask a soft-spoken person to speak up. Sometimes it’s easier just to nod and smile.

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Many older people I know choose to avoid social gatherings altogether because they can’t hear well. Without hearing aids, I’d stay home too.

Hearing loss can harm one’s health in other ways. For example, I’ve written about the need for a comprehensive approach to reducing cancer risk at older ages, including preventive services such as colorectal cancer screening. But these services rely on conversations between patients and their healthcare providers. An older patient’s ability to hear and understand such conversations shouldn’t be taken for granted or ignored.

The Food and Drug Administration did improve access to hearing aids by making some of them available without a prescription in 2022, but the over-the-counter devices are inadequate for serious hearing loss like mine. My private health insurance, meanwhile, started covering hearing aids a few years ago, providing up to $2,500 for them every five years. One hearing aid alone can cost that much or more, however.

Despite its limitations, my private coverage for hearing aids is better than nothing, which is what traditional Medicare provides.

Hearing loss is more common among lower-income people and those without advanced education. The toll from noisy workplaces compounds age-related hearing loss for some. One analysis found that most Americans with a serious hearing disability can’t afford the typical price of hearing aids.

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Many of the older adults who can’t come up with these significant out-of-pocket expenses spent their working years in low-wage jobs that our country depends on. Denying them treatment for their hearing loss is a lousy way to treat people who gave years of service to our society.

Although some older adults with hearing loss won’t benefit from hearing aids, Medicare coverage for the devices might encourage more beneficiaries to get their hearing tested so they can get the treatment that’s right for them. And while Medicare coverage alone won’t address the stigma some people associate with hearing aids, the availability of newer, more comfortable and less obvious technology might win over some refuseniks.

Legislation reintroduced with bipartisan support last year would finally correct this glaring gap in Medicare coverage by removing the hearing aid exclusion from the law. There’s no reason to delay action on this any longer. Are our representatives listening?

Mary C. White is an adjunct professor of environmental health at Emory University’s Rollins School of Public Health, a Public Voices fellow at AcademyHealth in partnership with the OpEd Project and a former federal epidemiologist.

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Second human case of bird flu detected in Michigan dairy worker

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Second human case of bird flu detected in Michigan dairy worker

A second human case of bird flu in a diary worker has been confirmed in Michigan, state and federal health officials announced Wednesday.

The symptoms were mild, consisting of conjunctivitis. The Texas dairy worker who contracted the virus in March also came down with pink eye.

At a press call on Wednesday, Nirav Shah, principal deputy director of the U.S. Centers for Disease Control and Prevention, said the finding was “not unexpected” and that it was a scenario “that we had been preparing for.”

He said that since the discovery of H5N1 in dairy cattle, state and federal health officials have been closely monitoring farmworkers and slaughterhouse workers and urging farmers and farmworker organizations to “be alert, not alarmed.”

Federal officials say they still believe the human health risk of bird flu is low; however, it underscores the need for people who are interacting with infected or potentially infected farm animals or birds to take precautions, including avoiding dead animals and wearing personal protective equipment (PPE) if there’s a need to be in close contact.

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Though a nasal swab from the person in Michigan tested negative for influenza, an eye swab from the patient was shipped to the CDC and tested positive for influenza A(H5N1) virus.

This is the third case of H5N1 reported in the United States. A poultry worker in Colorado was identified in 2022.

Although the symptoms in the three farmworkers in the U.S. have been mild, people elsewhere in the world have suffered more severe illness, including death. According to the World Health Organization, between Jan. 1, 2003, and March 28, 2024, there have been 888 cases of human infection from 23 countries; 463 were fatal.

In preparation for a more widespread outbreak, the CDC updated its guidance for PPE in dairies and issued a nationwide order for healthcare providers to be on the lookout for novel influenza.

On Tuesday, the CDC asked clinical laboratories and health departments to increase the number of influenza samples being analyzed “to maximize the likelihood of catching a case of H5N1 in the community,” Shah said.

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The US Department of Agriculture is also expanding its surveillance and support by providing $1500 to non-infected farms to beef up biosecurity, and $100 to producers who want to buy inline samplers to test their milk. The agency will also provide $2000 per farm to cover veterinary fees for testing, as well as shipping costs to send those tests to laboratories for analysis.

There have been no cases of H5N1 detected in California’s dairy herds.

Officials said ongoing analysis of the nation’s dairy supply suggests it is safe to consume, Despite the risk to human health being low, an official with the Administration for Strategic Preparedness and Response said it will make Tamiflu available upon request “to jurisdictions that do not have their own stockpile and are responding to pre-symptomatic persons with exposure to confirmed or suspected infected birds, cattle or other animal exposures.”

Dawn O’Connell, assistant secretary of the preparedness agency, said it started the “fill and finish” process for approximately 4.8 million doses of vaccine “that is well matched to the currently circulating strain of H5N1 through the national pre-pandemic influenza vaccine stockpile program.”

She said the decision to get started on H5N1 vaccines was not a response to any heightened concern, but since it takes several months to fill and finish vaccine doses, the agency “thought it made sense given what we were seeing.”

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Gas stoves may contribute to early deaths and childhood asthma, new Stanford study finds

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Gas stoves may contribute to early deaths and childhood asthma, new Stanford study finds

Lung-irritating pollution created by cooking with gas stoves may be contributing to tens of thousands of premature deaths and cases of childhood asthma in the United States, according to a new study published in the journal Science Advances.

For decades, scientists have known the flames from a gas stovetop produce nitrogen dioxide, a pungent gas that can inflame a person’s lungs when inhaled. But for the first time, a team of researchers from Stanford University and Oakland-based research institute PSE Healthy Energy published a nationwide estimate of the long-term health consequences associated with cooking with natural gas and propane stoves.

Researchers concluded that exposure to nitrogen dioxide emissions alone may contribute to nearly 19,000 premature deaths in the United States each year. It has also resulted in as many as 200,000 current cases of pediatric asthma compared with cooking with electric stoves, which do not produce nitrogen dioxide.

Aggressive and impactful reporting on climate change, the environment, health and science.

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Stanford researcher Yannai Kashtan noted higher levels of pollution were correlated with the amount of gas that was burned. But pollution also accumulated at higher levels inside smaller homes.

“If you live in a smaller house, you’re exposed to more pollution, and that can lead to income and racial disparities in exposure,” Kashtan said. “In general, folks living in neighborhoods with higher levels of outdoor pollution also tend to have higher indoor pollution. So this environmental injustice extends indoors as well.”

The American Gas Assn., a trade organization representing more than 200 local energy companies nationwide, dismissed the findings as “misleading and unsupported.”

“Despite the impressive names on this study, the data presented here clearly does not support any linkages between gas stoves and childhood asthma or adult mortality,” the association’s president and CEO, Karen Harbert said in a statement earlier this month.

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The study is the latest examining the serious health effects associated with breathing fumes from gas stoves, which release planet-warming carbon emissions and a variety of air pollutants. In recent years, the popular household appliance has become a political hot-button issue as policymakers and regulators have weighed environmental impacts against consumer choice.

Many large cities in California, including Los Angeles, have moved toward phasing out gas stoves in newly constructed residences. Earlier this month, the California Assembly advanced a bill to the Senate that would require gas stoves to come with warning labels detailing the pollution and health effects that can arise from cooking with gas.

Gas stoves emit a variety of pollutants, including asphyxiating carbon monoxide, cancer-causing formaldehyde and benzene. The flame also creates nitrogen dioxide, a precursor to smog and a pollutant that can cause difficulty breathing.

Environmental groups say consumers should be notified about these pollutants and the potential harm they can cause.

“Gas stoves create pollution in our homes, increasing the risk of childhood asthma and other respiratory problems for our families,” said Jenn Engstrom, state director for California Public Interest Research Group. “However, this risk has largely been hidden from the public. Consumers deserve the truth when it comes to the danger of cooking with gas. Warning labels will give consumers what they need to make informed decisions when they purchase appliances for their homes.”

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Kashtan and other researchers had previously discovered cooking with gas stoves presented a similar cancer risk as inhaling second-hand cigarette smoke. They also found some gas stoves leaked contaminants even when the burners were off.

The effects are especially devastating to children, whose smaller and still-developing lungs need to take more breaths than adults, Kashtan said. Older adults, especially those with cardiovascular or respiratory illness, are also more vulnerable to pollution from gas stoves.

To alleviate indoor air pollution, experts recommend using ventilation hoods and opening windows while cooking,

Starting in 2008, California required new and redeveloped homes to have ventilation that could prevent pollution from building up indoors. But during their research, measuring emissions in more than 100 households across the country, Yannai said they found many kitchens didn’t have ventilation hoods at all.

Although the health effects of breathing these pollutants are clear, researchers still wonder to what degree these conditions could be reversible. As communities take steps to mitigate their exposure or transition away, he said we could soon see the results.

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“It’s never too late to stop breathing in pollution,” he said.

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