Passenger opens plane’s emergency latch for ‘fresh air’, gets detained

Washington D.C., Feb 6: An international team of astronomers has found an unusual monster galaxy that existed about 12 billion years ago when the universe was only 1.8 billion years old.

The team of astronomers was led by scientists at the University of California, Riverside.

Dubbed XMM-2599, the galaxy formed stars at a high rate and then died. Why it suddenly stopped forming stars is unclear.

"Even before the universe was 2 billion years old, XMM-2599 had already formed a mass of more than 300 billion suns, making it an ultra massive galaxy," said Benjamin Forrest, a postdoctoral researcher in the UC Riverside Department of Physics and Astronomy and the study's lead author.

"More remarkably, we show that XMM-2599 formed most of its stars in a huge frenzy when the universe was less than 1 billion years old and then became inactive by the time the universe was only 1.8 billion years old," Forrest added.

The team used spectroscopic observations from the W. M. Keck Observatory's powerful Multi-Object Spectrograph for Infrared Exploration or MOSFIRE, to make detailed measurements of XMM-2599 and precisely quantify its distance.

The study results appear in the Astrophysical Journal.

"In this epoch, very few galaxies have stopped forming stars, and none are as massive as XMM-2599," said Gillian Wilson, a professor of physics and astronomy at UCR in whose lab Forrest works.

"The mere existence of ultramassive galaxies like XMM-2599 proves quite a challenge to numerical models. Even though such massive galaxies are incredibly rare at this epoch, the models do predict them."

"The predicted galaxies, however, are expected to be actively forming stars. What makes XMM-2599 so interesting, unusual, and surprising is that it is no longer forming stars, perhaps because it stopped getting fuel or its black hole began to turn on. Our results call for changes in how models turn off star formation in early galaxies," the professor stated.

The research team found XMM-2599 formed more than 1,000 solar masses a year in stars at its peak of activity -- an extremely high rate of star formation. In contrast, the Milky Way forms about one new star a year.

"XMM-2599 may be a descendant of a population of highly star-forming dusty galaxies in the very early universe that new infrared telescopes have recently discovered," said Danilo Marchesini, an associate professor of astronomy at Tufts University and a co-author on the study.

"We have caught XMM-2599 in its inactive phase," Wilson said, who led the W. M. Keck Observatory data acquisition
Co-author Michael Cooper, a professor of astronomy at UC Irvine, said this outcome is a strong possibility.

"Perhaps during the following 11.7 billion years of cosmic history, XMM-2599 will become the central member of one of the brightest and most massive clusters of galaxies in the local universe," he said.

"Alternatively, it could continue to exist in isolation. Or we could have a scenario that lies between these two outcomes," he stated.

The study was supported by grants from the National Science Foundation and NASA.

May 7: India is projected to record the highest number of births in the 9 months since COVID-19 was declared a pandemic in March, with more than 20 million babies expected to be born in the country between March and December, according to top UN body.

The United Nations Children's Fund (UNICEF) warned that pregnant mothers and babies born during the pandemic across the world were threatened by strained health systems and disruptions in services.

An estimated 116 million babies will be born under the shadow of COVID-19 pandemic, UNICEF said on Wednesday, ahead of Mother's Day, observed on May 10.

These babies are projected to be born up to 40 weeks after COVID-19 was recognised as a pandemic on March 11.

The highest numbers of births in the 9 months since the pandemic was declared are expected to occur in India, where 20.1 million babies are projected to be born between March 11 and December 16. Other countries with the expected highest numbers of births during this period are China (13.5 million), Nigeria (6.4 million), Pakistan (5 million) and Indonesia (4 million), it said.

"Most of these countries had high neonatal mortality rates even before the pandemic and may see these levels increase with COVID-19 conditions," UNICEF said.

It is estimated that there will be 24.1 million births in India for the January-December 2020 period.

UNICEF warned that COVID-19 containment measures can disrupt life-saving health services such as childbirth care, putting millions of pregnant mothers and their babies at great risk.

Even wealthier countries are affected by this crisis. In the US, the sixth-highest country in terms of the expected number of births, over 3.3 million babies are projected to be born between March 11 and December 16.

"New mothers and newborns will be greeted by harsh realities," UNICEF said, adding they include global containment measures such as lockdowns and curfews; health centres overwhelmed with response efforts; supply and equipment shortages; and a lack of sufficient skilled birth attendants as health workers, including midwives, are redeployed to treat COVID-19 patients.

"Millions of mothers all over the world embarked on a journey of parenthood in the world as it was. They now must prepare to bring a life into the world as it has become – a world where expecting mothers are afraid to go to health centres for fear of getting infected, or missing out on emergency care due to strained health services and lockdowns," UNICEF Executive Director Henrietta Fore said.

"It is hard to imagine how much the coronavirus pandemic has recast motherhood" Fore said.

UNICEF said its analysis was based on data from World Population Prospects 2019 of the UN Population Division.

An average full-term pregnancy typically lasts a complete 9 months, or 39 to 40 weeks. For the purposes of this estimate, the number of births for a 40-week period in 2020 was calculated.

The 40-week period of March 11 to December 16 is used in this estimate based upon the WHO's March 11 assessment that COVID-19 can be characterised as a pandemic.

UNICEF warned that although evidence suggests that pregnant mothers are not more affected by COVID-19 than others, countries need to ensure they still have access to antenatal, delivery and postnatal services.

Similarly, sick newborns need emergency services as they are at high risk of death. New families require support to start breastfeeding, and to get medicines, vaccines and nutrition to keep their babies healthy, it said.

"This is a particularly poignant Mother's Day, as many families have been forced apart during the coronavirus pandemic, but it is also a time for unity, a time to bring everyone together in solidarity. We can help save lives by making sure that every pregnant mother receives the support she needs to give birth safely in the months to come," Fore said.

Issuing an urgent appeal to governments and health care providers to save lives in the coming months, UNICEF said efforts must be made to help pregnant women receive antenatal checkups, skilled delivery care, postnatal care services, and care related to COVID-19 as needed.

Ensure health workers are provided with the necessary personal protective equipment and get priority testing and vaccination once a COVID-19 vaccine becomes available so that can deliver high quality care to all pregnant women and newborn babies during the pandemic, it said.

While it is not yet known whether the virus is transmitted from a mother to her baby during pregnancy and delivery, UNICEF advised all pregnant women to follow precautions to protect themselves from exposure to the virus.

Closely monitor themselves for symptoms of COVID-19 and seek advice from the nearest designated facility if they have concerns or experience symptoms. Pregnant women should also take the same precautions to avoid COVID -19 infection as other people: practice physical distancing, avoid physical gatherings and use online health services, it said.

UNICEF said even before COVID-19 pandemic, an estimated 2.8 million pregnant women and newborns died every year, or 1 every 11 seconds, mostly of preventable causes.

The agency called for immediate investment in health workers with the right training, who are equipped with the right medicines to ensure every mother and newborn is cared for by a safe pair of hands to prevent and treat complications during pregnancy, delivery and birth.

Rome, Mar 19: Italy on Wednesday reported 475 new deaths from the novel coronavirus, the highest one-day official toll of any nation since the first case was detected in China late last year.

The total number of deaths in Italy has reached 2,978, more than half of all the cases recorded outside China, while the number of infections stood at 35,713.

The previous record high of 368 deaths was also recorded in Italy, on Sunday. The nation of 60 million has now recorded 34.2 percent of all the deaths officially attributed to COVID-19 across the world.

With the death rate still climbing despite the Mediterranean country entering a second week under an effective lockdown, officials urged Italians to have faith and to stay strong.

"They main thing is, do not give up," Italian National Institute of Health chief Silvio Brusaferro said in a nationally televised press conference.

"It will take a few days before we see the benefits" of containment measures, said Brusaferro. "We must maintain these measures to see their effect, and above all to protect the most vulnerable."

Imposed nationally on March 12, the shutdown of most Italian businesses and a ban on public gatherings are due to expire on March 25.

But school closures and other measures, such as a ban fan attendance at sporting events, are due to run on until April 3.

A top government minister hinted Wednesday that the school closure would be extended well into next month, if not longer.

The rates within Italy itself remained stable, with two-thirds of the deaths -- 1,959 in all -- reported in the northern Lombardy region around Milan, the Italian financial and fashion capital.