International

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.

International

Rubio signals possible engagement with Iranian factions amid internal divisions

U.S. Secretary of State Marco Rubio said Monday that Washington is hopeful of engaging with factions within the government of Iran, noting that the United States has received positive private signals.

Speaking to ABC News’ Good Morning America, Rubio suggested that internal divisions exist within the Islamic Republic and expressed confidence that figures with the authority to act could emerge.

“We are hopeful that this will be the case,” Rubio said. “Clearly, there are people there who are communicating with us in ways that those previously in power in Iran did not. This is reflected in some of the steps they appear willing to take.”

Despite this, Rubio maintained a firm stance toward Iran, reiterating that the ongoing conflict seeks to eliminate its capacity to develop nuclear weapons—an objective that President Donald Trump has previously claimed was achieved during a military strike last year.

International

King Charles III to visit the U.S. on first state trip since taking the throne

King Charles III and Queen Camilla will undertake a state visit to the United States on the recommendation of the British government, Buckingham Palace announced on Tuesday, adding that further details will be released at a later date.

The visit aims to highlight the historic ties and current relationship between the United Kingdom and the United States, as both countries prepare to mark the 250th anniversary of American independence in 2026.

The trip is expected to take place at the end of April and follows U.S. President Donald Trump’s visit to the United Kingdom last year, which sought to strengthen bilateral relations.

This will be Charles III’s first state visit to the United States since ascending to the throne in 2022, although he previously traveled there 19 times as Prince of Wales.

By comparison, Queen Elizabeth II made four state visits to the United States—in 1957, 1976, 1991, and 2007—while U.S. presidents have carried out four state visits to the United Kingdom since 1952, in 2003, 2011, 2019, and 2025.

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Following the U.S. trip, the monarch is also expected to travel to Bermuda, marking his first official visit to the territory since becoming head of state.

The visit comes amid tensions between the two countries due to differences between President Trump and British Prime Minister Keir Starmer over the war in Iran. Starmer has reiterated that the United Kingdom will not take part in the conflict, although it will defend its interests and support allies in the Persian Gulf.

Trump has criticized that stance, urging countries not involved in the military campaign to act decisively, stating that “the hardest part is already done.”

The trip also follows a request by U.S. Congressman Ro Khanna, who called on the king to meet privately with victims linked to convicted sex offender Jeffrey Epstein during his stay.

The case has also involved the king’s brother, Prince Andrew, who has faced scrutiny over his past associations with Epstein. The former royal, stripped of his titles and honors, has denied any wrongdoing despite ongoing allegations and investigations.

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International

Leopoldo López thanks Spain for fast-track citizenship but says “I am still Venezuelan”

Venezuelan opposition leader Leopoldo López expressed gratitude on Tuesday to the Government of Spain after being granted Spanish citizenship through an expedited process, following the revocation of his Venezuelan nationality by the administration of Nicolás Maduro.

Speaking in Madrid, López acknowledged the gesture but admitted having mixed emotions. “I am grateful to the Spanish government for granting me citizenship, but I have mixed feelings, as do millions of Venezuelans who have had to leave their country. It is not easy,” he said.

The opposition figure highlighted Spain’s role as a refuge for Venezuelans, while emphasizing that his identity remains unchanged. “Spain has been, for me, my family, and hundreds of thousands of Venezuelans, a homeland away from home. That does not mean we stop being Venezuelan. I am Venezuelan, I carry Venezuela in my heart, and everything I have done has been for Venezuela,” he added.

López requested Spanish nationality after the Venezuelan government stripped him of his citizenship in October, accusing him of promoting a “military invasion,” a move that left him effectively stateless.

Initially, he applied through the standard process in late 2025 but, unable to meet the requirements, later sought nationality through a special mechanism known as “carta de naturaleza,” with the support of Spain’s foreign minister, José Manuel Albares.

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To support his application, López submitted documentation from the Inter-American Court of Human Rights, which determined that he had been a victim of political persecution, arbitrary detention, imprisonment, and other actions by the Venezuelan government.

“For me, this has been a long journey. The persecution by the dictatorship against me began many years ago. I was banned, persecuted, censored, imprisoned, and sentenced to 14 years in prison. I had to escape from Venezuela, from prison,” he said.

Spain’s decision to grant him citizenship through an exceptional procedure was justified by his “very special situation,” including the lack of documentation and legal status.