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Learn about seven important NASA discoveries

Learn about seven important NASA discoveries
Photo: NASA

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.

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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).

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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.

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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.

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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.

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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.

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Central America

Argentina Falls to Lowest Rating in Global Workers’ Rights Index Under Milei Administration

Panamanian president consults attorney general to repeal mining contract

Argentina and Panama have joined Ecuador among the world’s 10 worst countries for workers’ rights, according to a report released Monday by the International Trade Union Confederation (ITUC).

The three Latin American nations appear alongside Belarus, Egypt, Eswatini, Myanmar, Nigeria, Tunisia and Turkey in the latest edition of the Global Rights Index, which evaluates the protection of labor rights around the world.

According to the ITUC, Argentina entered the list this year after being downgraded to Category 5, marking its second consecutive year of declining ratings.

“Argentina joins the list of the 10 worst countries for workers this year after falling to Category 5, following a second consecutive year of deterioration in its rating,” the organization stated.

The report argues that working conditions and the environment for trade unions have become increasingly restrictive under the administration of President Javier Milei.

“Conditions for workers and trade unions have become increasingly repressive and hostile under the far-right government of President Javier Milei,” the study said.

The ITUC also highlighted Argentina’s implementation of an anti-blockade protocol aimed at maintaining public order during road blockades. According to the report, the measure authorizes what it describes as the indiscriminate use of police force.

The organization noted that Argentina’s rating has worsened for a second consecutive year, placing the country in Category 5, the lowest level assigned in the index and the worst rating Argentina has ever received.

“This represents an abrupt and unprecedented decline from Category 3 to Category 5 in just two years,” the report stated.

Category 5 includes countries where workers’ rights are considered “not guaranteed.” According to the ITUC, the downgrade reflects a shift from recurring labor rights violations to a situation in which workers are no longer assured basic protections.

The annual index assesses issues such as freedom of association, collective bargaining rights, the right to strike and legal protections for workers and trade unions.

The report’s findings place renewed international attention on labor conditions in several countries, particularly in Latin America, where Argentina, Panama and Ecuador now rank among the most challenging environments for workers’ rights.

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International

OAS Election Mission to Monitor Claims of Political Interference by Colombia’s President

The Electoral Observation Mission of the Organization of American States (OAS) has pledged to follow up on allegations regarding the alleged involvement of Colombian President Gustavo Petro in political campaigning ahead of Sunday’s presidential election.

The announcement was made by presidential candidate Claudia López after a meeting with the head of the OAS Electoral Observation Mission, former Dominican Republic President Leonel Fernández.

According to a statement released by López’s campaign, the OAS mission listened to the concerns raised by the candidate and committed to monitoring the complaints she has submitted to both national and international organizations.

The mission also reiterated its commitment to overseeing the electoral process to help ensure that the will of Colombian voters is respected throughout the election.

“We have turned to international forums and technical observation missions to warn that Colombian democracy cannot be left at the mercy of fear or undue pressure,” López, the former mayor of Bogotá, said following the meeting.

López has repeatedly expressed concerns about what she describes as political interference in the electoral process and has called on national and international institutions to closely monitor the conduct of the campaign.

The OAS observation mission is one of several international bodies deployed to Colombia to monitor the presidential election, which is taking place amid heightened political tensions and intense competition among candidates from across the ideological spectrum.

The election is expected to be closely watched both domestically and internationally as Colombians choose whether to continue with the country’s first left-wing administration or shift toward a new political direction.

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International

Colombia Votes in Pivotal Election as Left Seeks to Retain Power

Colombians headed to the polls on Sunday in a crucial presidential election that will determine whether the country continues under its first left-wing government in modern history or shifts back toward the political right.

The election campaign has been marked by deep political divisions, with armed violence and economic concerns emerging as the dominant issues for voters.

A total of 11 candidates remain in the race following the withdrawal of three presidential tickets. The central question is which candidate will advance to a likely runoff election alongside ruling-party senator Iván Cepeda, who has led opinion polls for months with his platform of “democratic revolution” but is not expected to secure enough votes to win outright in the first round.

On the right, Senator Paloma Valencia of the Democratic Center party, the political movement founded by former President Álvaro Uribe, has lost momentum as support has grown for far-right attorney Abelardo de la Espriella. Known as “The Tiger,” De la Espriella has campaigned on a tough-on-crime agenda targeting criminal organizations and guerrilla groups, drawing comparisons to the security policies of Salvadoran President Nayib Bukele.

Political analyst Sandra Borda, a professor at the University of the Andes, argues that Colombia is experiencing not simply greater polarization but a broader political landscape.

“The 2016 peace agreement with the FARC opened significant space for the left. Inevitably, it also created opportunities for the right,” Borda told CNN. The political scientist, who ran for the Senate in 2022 with the New Liberalism movement, believes the current election presents a more challenging environment for the left than four years ago.

According to Borda, left-wing candidates can no longer campaign solely as agents of change who have never had the opportunity to govern or who remained untouched by traditional politics.

“They can no longer make that argument. They have already governed and are no longer immune from criticism associated with political power,” she said.

The election is being closely watched across Latin America as voters weigh the record of the outgoing administration against promises of change from candidates across the political spectrum.

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