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
King Charles III Says U.S.-UK Alliance Is “Irreplaceable and Unbreakable”
King Charles III of the United Kingdom reaffirmed the strength of the British-American relationship on Tuesday during a speech before the United States Congress, describing the alliance between the two nations as “irreplaceable and unbreakable.”
The address, delivered at the Capitol, marked the first speech by a British monarch before Congress since Queen Elizabeth II in 1991 and comes at a time of political tensions between Donald Trump’s administration and the Labour government of Prime Minister Keir Starmer.
“As President Trump himself observed during his state visit to Britain last autumn, the bond of kinship and identity between the United States and the United Kingdom is invaluable and eternal. It is irreplaceable and unbreakable,” the king said.
While reflecting on the upcoming 250th anniversary of U.S. independence, which will be commemorated this year, Charles III stated that the partnership between the two countries “was born out of disagreement, but is no less strong because of it.”
The monarch emphasized the democratic values shared by both nations and noted that major global changes have occurred whenever the two allies found common ground.
“When we have found that way to agree, great changes have taken place not only for the benefit of our peoples, but for all peoples,” he said.
King Charles also quoted British Prime Minister Keir Starmer, who recently described the relationship as “an indispensable alliance.”
Concluding his speech, the monarch described the shared history of the United States and the United Kingdom as “a story of reconciliation, renewal, and an extraordinary partnership.”
He added that Washington and London have forged “one of the most consequential alliances in human history.”
“I pray with all my heart that our alliance continues to defend our shared values, together with our partners in Europe, the Commonwealth, and around the world, and that we ignore calls urging us to become increasingly isolationist,” Charles III stated.
The king ended by urging both nations to “recommit to one another in selfless service to our peoples and to all peoples of the world.”
International
Trump Administration Considers Denying Green Cards Over Political Views
The administration of President Donald Trump is evaluating new immigration guidelines that could deny permanent residency to immigrants based on their political views, according to a report published by The New York Times.
The proposed measures, outlined in internal Department of Homeland Security documents, would instruct immigration officials to take applicants’ public expressions and ideological positions into account when reviewing green card applications.
According to the report, cases involving “possible anti-American and/or antisemitic conduct or ideologies” would need to be referred to higher authorities for additional review.
Even if applicants have not violated any laws, authorities could still reject residency requests if they determine that individuals have “endorsed, promoted, or supported anti-American views.”
Among the factors listed in the guidelines are participation in pro-Palestinian activities, actions considered antisemitic, and the burning of the U.S. flag.
The documents reportedly describe such actions as “heavily negative” factors in immigration evaluations, potentially blocking applicants from obtaining permanent residency and, eventually, U.S. citizenship.
The directives also place particular attention on demonstrations held on university campuses following the 2023 Hamas attacks against Israel.
However, flag burning has previously been recognized by the U.S. Supreme Court as a form of protected free speech under the Constitution.
The proposal has sparked criticism from immigrant advocacy organizations, including the New York Immigration Coalition.
Its president, Murad Awawdeh, warned that the policies could pose a threat to fundamental rights and freedoms.
International
Mexico Arrests CJNG Leader “El Jardinero” in Nayarit
Mexican authorities arrested Audias Flores, known as “El Jardinero,” on Monday during a naval operation in the western state of Nayarit, delivering another major blow to the Cártel Jalisco Nueva Generación (CJNG).
Flores was considered one of the top regional leaders within the cartel and had reportedly overseen criminal operations along Mexico’s Pacific coast. Security analysts viewed him as a potential successor to slain drug kingpin Nemesio Oseguera.
The arrest was carried out by Mexico’s Navy Special Forces in a planned operation, according to Security Minister Omar García Harfuch.
The United States Department of the Treasury had previously identified Flores as a “significant foreign narcotics trafficker,” while U.S. authorities offered a reward of up to $5 million for information leading to his capture and extradition.
A U.S. grand jury indicted Flores in 2021 on charges including conspiracy to distribute cocaine and heroin.
His capture comes months after the reported death of “El Mencho,” an operation that Mexican authorities considered a priority due to the cartel leader’s alleged involvement in a 2020 assassination attempt against García Harfuch.
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