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
Petro accuses top guerrilla leader of bribing officers to evade military strikes
The president of Colombia, Gustavo Petro, said Saturday that the country’s most wanted guerrilla leader is bribing members of the security forces to obtain advance information and evade military operations.
According to the government, Iván Mordisco, a dissident leader of the now-defunct FARC, is currently on the run in the जंगल following an الجيش bombardment last week that killed six of his closest collaborators in the department of Vaupés.
Authorities believe the guerrilla commander had been at the site shortly before the operation. “He buys off the commanders who are supposed to capture him; that’s how he escapes the bombings, but leaves his own people to die. He is warned before every strike,” Petro wrote on social media platform X.
The six individuals killed in the strike were part of Mordisco’s security ring, according to Defense Minister Pedro Sánchez.
Local media reported that one of those killed was a woman known as “alias Lorena,” who was allegedly Mordisco’s partner and the mother of his child.
After failed attempts to negotiate peace, Petro’s administration has shifted to a more aggressive military strategy against the guerrilla leader. In recent months, three of Mordisco’s brothers have been captured and now face charges including homicide, kidnapping, and arms trafficking.
Central America
Costa Rica urges China to halt actions against Panama-flagged vessels
The government of Costa Rica on Saturday called on China to halt retaliatory actions against vessels flying the Panamaflag, amid escalating tensions over control of two strategic ports linked to the Panama Canal.
In a statement shared on social media, Costa Rica’s Foreign Ministry warned that the situation “puts global trade at risk” and expressed its “deep concern and strongest condemnation” over what it described as “arbitrary and unjustified delays and inspections in Chinese ports.”
The Costa Rican government urged “full respect for international law, particularly the United Nations Convention on the Law of the Sea,” while reaffirming its “unconditional support and solidarity” with Panama.
San José’s position aligns with growing international criticism from countries including Honduras, Peru, Paraguay, Israeland Ukraine.
Paraguayan authorities described the detentions as “unacceptable” and pointed to what they called “undue pressure” on the Panamanian government.
International
Mexico leads global cases of enforced disappearances, UN report finds
Mexico accounts for the highest number of urgent actions related to enforced disappearances worldwide, according to the latest report by the UN Committee on Enforced Disappearances.
The report, released by I(dh)eas, indicates that Mexico has accumulated 819 cases between 2012 and February 2026, representing 38% of the global total.
In the past five months alone, 40 new urgent requests have been recorded — more than one-third of all such actions worldwide during that period.
The report warns that this trend reflects a structural problem, as the urgent action mechanism — originally intended as an exceptional measure — has become routine in Mexico.
Although the Mexican state formally complies with response deadlines, the Committee identified significant shortcomings in the implementation of these measures. These include the lack of comprehensive search plans, delays in key investigative procedures such as video surveillance and phone data analysis, and insufficient inquiries into possible links involving state agents.
The report also highlights inadequate protection for relatives and individuals involved in search efforts, including cases of reprisals.
Among the most serious incidents documented is the disappearance of a father who had denounced alleged involvement of authorities in his son’s case in the state of Guanajuato.
The accumulation of cases could lead to the application of Article 34 of the Convention, which would allow for the launch of an international investigation into systematic enforced disappearances.
Geographically, the state of Chiapas accounts for 30% of the new urgent actions, many of them linked to collective disappearances of migrants.
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