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

Two killed in shooting at restaurant near Frankfurt Airport

Two people were shot dead early Tuesday at a restaurant in Raunheim, near Frankfurt Airport, according to local police.

Preliminary findings indicate that an armed individual entered the establishment at around 03:45 local time (02:45 GMT) and opened fire on the victims, who died at the scene from their injuries.

The suspect fled and remains at large, while the motive behind the shooting is still unclear, German media reported. Authorities have launched a large-scale search operation.

International

U.S. counterterrorism chief resigns over opposition to war in Iran

Joe Kent, director of the National Counterterrorism Center, announced Tuesday that he has resigned from his post, citing his opposition to the ongoing war in Iran.

In a post on X, Kent said he could not, “in good conscience,” support the conflict, arguing that Iran did not pose an imminent threat to the United States. He also claimed that the war was driven by pressure from Israel and its lobbying influence in Washington.

In a resignation letter addressed to Donald Trump, Kent alleged that at the start of the current administration, senior Israeli officials and influential figures in U.S. media carried out a disinformation campaign that undermined the “America First” platform and fostered pro-war sentiment aimed at triggering a conflict with Iran.

Kent further stated that he could not support sending a new generation of Americans to “fight and die in a war that provides no benefit to the American people and does not justify the cost in American lives.”

Since the United States and Israel launched attacks against Iran on February 28, at least 13 U.S. service members have been killed, while 10 others have been seriously wounded and around 200 have sustained minor injuries, according to a report published by The Wall Street Journal.

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International

German president warns Iran war could spread and disrupt Strait of Hormuz

The president of Germany, Frank-Walter Steinmeier, warned Monday that the war involving Iran could expand and further disrupt shipping through the strategic Strait of Hormuz. He urged a swift end to hostilities between Iran, United States and Israel.

Speaking in Panama City during a joint appearance with Panamanian President José Raúl Mulino, Steinmeier said available information suggests Iran has significant capacity to disrupt maritime traffic through the key oil route.

“Iran has considerable potential to interfere with shipping through the Strait of Hormuz,” Steinmeier said through an interpreter. “We should therefore reach an end to the hostilities as soon as possible and call on all parties involved to make that happen.”

The remarks came during Steinmeier’s visit to Panama, the first by a German president to the Central American nation.

The German leader described the possibility of the conflict spreading as “very dangerous,” saying recent developments indicate that such a scenario cannot be ruled out.

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Over the weekend, U.S. President Donald Trump urged allied nations to help ensure safe passage for ships through the Strait of Hormuz after Iran moved to block the waterway in response to U.S. strikes. However, several allies—particularly in Europe—have shown little support for the proposal.

“Some are very enthusiastic, others are not, and some are countries we have helped for many years,” Trump told reporters at the White House. “We have protected them from terrible external threats, and they’re not that enthusiastic. And the level of enthusiasm is important to me.”

Meanwhile, Kaja Kallas, the European Union’s top diplomat, said the Strait of Hormuz falls “outside NATO’s scope” and stressed that “the war involving Iran is not Europe’s war.”