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

White House says Cuba policy unchanged despite sanctioned fuel shipment

The White House said Monday that it has not changed its policy toward Cuba, despite allowing a sanctioned Russian oil tanker to deliver fuel to the island on humanitarian grounds.

U.S. officials emphasized that the decision was made as an exception and does not signal a broader shift in policy.

The administration added that similar decisions would be evaluated on a case-by-case basis, depending on humanitarian considerations.

The clarification comes amid ongoing restrictions related to U.S. sanctions policy, which continue to limit trade and financial flows involving Cuba.

International

Spain to grant citizenship to Venezuelan opposition leader Leopoldo López

The Spanish government is expected to grant citizenship this Tuesday to Venezuelan opposition leader Leopoldo Lópezthrough an extraordinary procedure known as “carta de naturaleza.”

The decision will be approved by royal decree, an exceptional legal mechanism used in special cases that require expedited resolution due to specific circumstances.

López has been living in Madrid since 2020, after leaving Venezuela following a prolonged political and legal conflict with the government of Nicolás Maduro.

According to government sources, López currently does not have a valid Venezuelan passport and faces difficulties in having his nationality fully recognized in his home country.

As a result, he applied for Spanish citizenship via a fast-track process at the end of 2025, after previously attempting to obtain it through regular procedures.

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The Spanish government justified the move based on López’s international relevance and foreign policy considerations.

López is the leader of the Voluntad Popular party and co-founder of the World Liberty Congress, an initiative launched in 2022 alongside figures such as Garry Kasparov and Masih Alinejad.

International

ICE to remain at airports amid DHS shutdown, Homan says

The U.S. “border czar,” Tom Homan, said Sunday that agents from U.S. Immigration and Customs Enforcement (ICE) will remain deployed at airports until operations return to “100% normal,” as the shutdown of the Department of Homeland Security (DHS) continues.

“We will maintain ICE presence until airports feel they are fully back to normal operations,” Homan said during an interview on Face the Nation on CBS.

Homan justified the deployment on security grounds, noting that the measure was ordered by President Donald Trumpamid widespread absenteeism among agents of the Transportation Security Administration, who have gone without pay for over six weeks due to the DHS shutdown.

According to acting TSA administrator Ha Nguyen McNeill, at least 460 TSA agents have resigned during the shutdown, while daily absenteeism has averaged 11%, exceeding 50% at some airports.

Homan warned that if TSA staffing levels do not recover after the shutdown, ICE agents will continue filling the gap. “ICE is there to support our TSA brothers and sisters. We will remain as long as needed to ensure airport security,” he said.

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The DHS shutdown reached 44 days on Sunday, making it the longest government shutdown in U.S. history. The impasse stems from disagreements between Democrats and Republicans over ICE funding.

A recent bipartisan Senate proposal to fund DHS without including ICE failed after being blocked by House Republicans, who insist on full funding for the agency.

Amid the deadlock, Trump signed an executive order directing Homeland Security Secretary Markwayne Mullin to immediately pay TSA agents to address what he called an “emergency situation” and restore order at airports, with payments expected to begin Monday.