International
Learn about seven important NASA discoveries
October 15 |
As part of the commemoration of the discovery of the exoplanet Kepler 452-b, by the National Aeronautics and Space Administration (NASA) of the United States (U.S.), this Sunday is worth knowing seven important discoveries of this U.S. agency in recent years.
The cosmic body identified by the Kepler telescope, to which it owes its name, was confirmed by NASA on July 23, 2015.
Kepler-452b is an exoplanet, a planet revolving around a star other than the Sun, which in this case is a G2-type yellow dwarf, which is known as Kepler-452.
The agency responsible for the civil space program, as well as for aeronautical and aerospace research, since its foundation in 1958 has developed space exploration and science projects, which have led to relevant discoveries in several aspects.
1) The study of twins
In April 2019 NASA published the controversial results of an investigation known as the Twins Study.
A set of ten teams of researchers from the United States (U.S.) set out to observe the changes that might occur to a human being when exposed to the risk of traveling into space for a year.
The scientists compared a wide range of samples and measurements from identical twin brothers, retired astronauts Scott Kelly and Mark Kelly. Scott was sent into space, while Mark remained on Earth.
One of the results revealed the lengthening of the space-bound twin’s telomeres, special features at the ends of each strand of DNA that generally shorten with age, which demonstrated how a human body can adapt to a variety of changes generated by the environment of outer space flight.
2) Observing the Earth from space
There are a wide variety of scientific studies based on images that NASA crew members take using Crew Earth Observations (CEO).
NASA’s orbiting space station carries its crew and cameras over different points on Earth at different times and the station revisits the sites at varying intervals, allowing images of many areas to be collected at different times of the day and night.
In this way experts discovered that artificial lighting at night affects the behavior of urban wildlife, according to a study of light levels in the city of Chicago that was based on images taken by astronauts from the International Space Station (ISS).
3) A revealing microscope
A miniaturized fluorescence microscope made it possible to observe changes in living cells in microgravity.
This microscope enables real-time analysis of cell behavior during long-duration spaceflight. Its rapid imaging capability allows monitoring of cellular and molecular reactions that can happen more rapidly in altered gravity environments.
The implementation of real-time analysis methods on the station furthers the understanding of how cells in the human body react and adapt to the space environment.
4) The universe in better resolution
NASA’s Neutron Star Interior Composition Explorer (Nicer) facilitates measurements with excellent precision of neutron stars, objects containing ultra-dense matter at the threshold of black hole collapse.
In early 2018 JAXA’s All-Sky X-ray Imaging Monitor (MAXI) captured a new transient X-ray source in the sky designated MAXI J1820 + 070.
Nicer began monitoring the source and discovered that it was a binary black hole system with a mass much larger than that of the Sun. In addition, recorded measurements have revealed how the inner edge of a black hole’s accretion disk (and the corona above it) vary in size and shape as a black hole consumes material from a companion star.
5) Spaceflight decreases crew performance on Earth.
Astronauts’ bodies adapt to microgravity while in space. When crew members return to Earth, they show significant decreases in manual dexterity, multitasking, motion perception, and the ability to operate a vehicle.
NASA researchers confirmed that the post-flight performance decline was related to spaceflight factors and not to other factors such as lack of practice or sleep.
6) Cement in space
Another discovery confirmed by NASA suggests the possibility of building places to live on the Moon or Mars.
It is a research called Microgravity Investigation of Cement Solidification (MICS), which reveals that samples processed in space show considerable changes in the microstructure of cement compared to those processed on Earth, such as increased porosity, or the presence of more open spaces.
Showing that cement can harden in space is of great importance for future lunar constructions.
7) Keep it clean
New materials are needed to slow the growth and spread of bacteria resistant to antibiotics and silver coatings, according to research called Biorisk-KM-Metally, conducted by the Russian space agency (Roscosmos) and confirmed by NASA.
The researchers conducted tests on an antimicrobial coating called AGXX® and compared it with silver and stainless steel coatings. For the study, crew members placed 12 plates on the space station’s toilet door, with one plate coated in each tested material to be collected at six, 12 and 19 months.
In all time lapses, the experts found that the AGXX® coating had significantly fewer bacteria than surfaces coated with silver and stainless steel. These data are useful for the development of ideal technologies to reduce the risk of biological damage to space hardware and equipment.
International
Indigenous candidate Leonidas Iza predicts a new social explosion if there is no change in Ecuador
The presidential candidate of Ecuador for the indigenous movement, Leonidas Iza, who was part of the wave of protests of 2019 and who led that of 2022, reveals himself as an “anti-system” politician in the face of “a corrupt system” that he intends to reformulate to relieve the impoverished, because he predicts a new social explosion if there is no change in the Government to meet popular demands.
Iza, 42, is the candidate of Pachakutik, the political arm of the Confederation of Indigenous Nationalities of Ecuador (Conaie) that he himself presides over, and with which he was at the forefront of the 2022 wave of protests against the government of conservative President Guillermo Lasso, where he was arrested and even labeled a “terrorist.”
“I am one of those who has never lost the ability to be outraged when governments have had policies against their own citizens,” Iza, a native of the Andean province of Cotopaxi, said in an interview with EFE.
“I am not against the private sector, I am against those who do not pay taxes and those who come to the Government only to defend their companies,” said the candidate in reference to the last two presidents (Lasso and Daniel Noboa).
“We fight for social justice, not to be violent. It is a reaction to the injustice to which we have been subjected,” he said.
For Iza, who represents the anti-extractivist left of Ecuador, the country has “a corrupt system, a health system that does not work, a deficient and unfair economic system, and public services that are not helping citizens.”
“And that’s what we want to change. We won’t be able to do it overnight, but the State can give relief to the people,” the candidate said.
To do this, it proposes to fight against tax evasion, which amounts to about 7.5 billion dollars a year, and also against corruption, which is estimated at about 3 billion dollars per year, to balance public accounts without having to follow the current credit program with the International Monetary Fund (IMF) that asks to cut public spending and raise taxes.
He also aimed to increase agricultural productivity, as well as boost tourism to go from 1 to 3 million visitors a year, and anticipated that he will regulate small and artisanal mining to avoid illegal mining but will not allow large-scale mining because it considers that it can contaminate the country’s large river basins.
Iza anticipated that he will not pay the external debt as long as there are “guaguas (children, in Kichwa) who have no education and are dying of hunger, and colleagues who are dying for lack of health.”
“We will tell the IMF and the other multilaterals that we are going to pay, but first we are going to solve the structural problem we have at the moment: education, health and minimum conditions for security,” he warned.
In that sense, Iza pointed out that “the strength of a popular reaction in the streets is accumulating” that must be resolved by whoever is elected. “Knowing my country, which has been on the streets all its life, there will be a popular reaction if (the discomfort) is not resolved in the following months,” he reiterated.
“The option that understands the people is us, and not the sectors that have always been in the Government,” said Iza, who avoided pointing out whether that reaction will reach the dimensions of the strong protests of 2019 and 2022, both led by the indigenous movement.
In this electoral campaign, Iza has left his distinctive Andean red poncho to put on the bulletproof vest in the face of the persistent wave of violence of organized crime that the country is experiencing, because he warned that the “war” that Noboa declared to the criminal gangs has not worked because its leaders are still free.
Faced with this, he promised “a hard hand for all” and recalled that “state institutions must suffocate everyone (criminals)”.
The candidate also advocated deepening international cooperation: “there must be a responsibility of all countries (producers, consumers and drug transit), especially in the region (of Latin America)”.
Asked if Ecuadorian society is ready to have an indigenous president of rural origin, Iza sees himself with popular support to face “the most reactionary sectors that have support in racism and stigmatization.”
International
Deaths in a hotel fire in a ski resort in Turkey rise to 69
The fire that occurred this morning in a 12-story hotel in a ski resort in northwestern Turkey claimed at least 69 deaths, in addition to causing fifty injuries, according to the latest assessment of the country’s authorities.
The fire originated around 3.30 a.m. local time (0.30 GMT) in a hotel, built entirely of wood, in the Kartalkaya ski center, halfway between Istanbul and Ankara, with almost full occupancy.
The flames were extinguished after about ten hours of firefighters’ work and the authorities found the death of 66 people, in addition to rescuing 51 injured, compared to the 10 dead and 32 injured initially estimated.
The hotel, with 161 rooms, had an occupancy close to 90%, because these days are the winter school holidays in Turkey, says the Turkish newspaper Hürriyet.
The wooden construction and the location of the hotel at the foot of a ski slope, which only allows vehicle access from the front facade, made the intervention of firefighters difficult, the Turkish newspaper explained.
According to the television network NTV, about 300 people, including employees, were in the hotel at the time of the fire, the causes of which are still unknown.
International
Hamas calls for counterattack on Israeli soldiers during their incursion in the West Bank
The Islamist organization Hamas urged the Palestinians on Tuesday to intensify and support their militiamen in the clashes against the Israeli Army during the military incursion that began today in Yenin, in the north of the occupied West Bank.
“We call on the masses of our people in the West Bank and their revolutionary youth to mobilize and intensify the clashes against the (Israeli) occupation army at all points, and to work to thwart the extensive Zionist aggression against the city of Yenin.”
“This military operation launched by the occupation in Yenin will fail, as did all its previous military operations against our brave people and their tenacious resistance,” the Palestinian group said.
Since the beginning of the operation, nicknamed by the Army “Iron Wall”, at least seven Palestinians have died in Yenin and another 35 have been injured, according to data from the Palestinian Ministry of Health.
Hamas accused the forces of the Palestinian National Authority (ANP), President Mahmoud Abbas’ ruling party in the West Bank, of having left Yenin to allow the operation of Israeli troops, instead of defending the Palestinians.
Israeli Prime Minister Benjamin Netanyahu defended on Tuesday that the last assault launched by his forces against Yenin, in the north of the occupied West Bank, seeks to “eradicate terrorism.”
“This is another step towards the objective we have set ourselves: to strengthen security in Judea and Samaria (West Bank),” according to a statement released by its Office.
“We are acting systematically and decisively against the Iranian axis wherever it sends its weapons: in Gaza, Lebanon, Syria, Yemen, Judea and Samaria (West Bank),” concludes the Israeli president’s note.
The rail comes shortly after the start of the ceasefire in Gaza, which includes a weekly exchange of hostages in the Strip for Palestinian prisoners in Israeli prisons.
Following the release of the prisoners, the Army increased its presence in this occupied territory with seven companies, claiming to strengthen its “anti-terrorist efforts.”
The images recorded in Yenin show dozens of Army vehicles accessing the local refugee camp, which has also been bombed by Israeli aviation.
The incursions and attacks of Israeli forces in Yenin, considered a bastion of Islamist-like militias, were already constant but they worsened after the Hamas attacks of October 7, 2023.
However, since mid-December it has been the security forces of the Palestinian National Authority (ANP), which governs small parts of the West Bank, that have led an offensive in this population, which until last Friday triggered armed fighting against the militiamen.
This exchange of fire has caused at least 15 people dead on both sides, including two minors.
The occupied West Bank is experiencing its greatest spiral of violence since the Second Intifada (2000-05), and in 2024 at least 491 Palestinians have died in the territory by Israeli fire, most of them militiamen from refugee camps, but also civilians, including at least 75 minors, according to EFE’s count.
So far this year, at least 24 Palestinians have already died in Israeli attacks, five of them minors.
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