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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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International

Looting Spreads in Venezuela’s Hardest-Hit Areas After Deadly Earthquakes

Not even the wires were left behind at a small grocery store. Before the ground had even stopped shaking, looting and theft began in the areas hardest hit by the double earthquake that struck Venezuela.

Reports of robberies have multiplied in the coastal state of La Guaira, located near Caracas and now transformed into a landscape of collapsed buildings and debris.

Videos circulating on social media show groups of people removing boxes of household appliances from a damaged store. Other images show similar boxes being carried on top of vehicles and motorcycles.

Social media platforms have also been filled with accusations against police officers and military personnel who allegedly stole from homes and even from victims who died during the disaster.

A branch of a major pharmacy chain was looted, along with supermarkets and other businesses. Some residents have described the situation as “disaster tourism,” while others say the looting reflects hunger and desperation among people who lost everything in a country already facing a prolonged economic crisis.

“Is it fair that our own people turn against our own people?” said María Esther Bernal, 71, who rented commercial spaces to Chinese merchants, all of which were looted. “They left nothing behind, not even the wallpaper. They even took the cables,” she said.

“Next door, a man died. He was Chinese. People walked over his body while they looted the place. It was a supermarket,” she added.

An AFP journalist witnessed looting in La Guaira since Thursday, following the earthquakes.

Jenifer Mayora, 34, defended some of the actions, saying that “the things people took were because the owners of the stores allowed us to take them.”

However, she criticized the limited response from authorities. “I have been waiting for a mattress so my children can sleep,” she said.

Residents have expressed anger over what they describe as a slow and insufficient response from authorities after the double earthquake, which has left around 1,450 people dead and tens of thousands missing.

Communities are demanding not only faster rescue operations in La Guaira, but also stronger security measures and urgent assistance with food, water, and medicine.

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International

UN warns Venezuela earthquakes could affect up to 6.76 million people

Up to 6.76 million people could be affected by the devastating earthquakes that struck Venezuela on June 24, according to an assessment released by the International Organization for Migration (IOM), a United Nations agency.

The organization said the projections are based on available population data and damage assessments, and include up to two million people living in Caracas, the country’s capital.

The estimates highlight the potentially massive humanitarian impact of the disaster, the IOM warned.

Entire buildings collapsed in La Guaira, a coastal area north of Caracas, following the powerful twin earthquakes that reached magnitudes of 7.2 and 7.5 on Wednesday.

The national death toll has risen to 920, while rescue teams continue searching for people trapped beneath the rubble in coastal regions and other affected areas.

UN humanitarian chief Tom Fletcher told AFP on Friday that more than 50,000 people were reported missing.

The IOM also revealed that it worked with Microsoft’s artificial intelligence laboratory on an initial satellite mapping analysis, which showed that 31.5% of buildings in the town of Catia La Mar had suffered damage.

Authorities and international rescue teams continue operations as Venezuela faces one of its largest humanitarian emergencies in recent years.

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International

United Nations Coordinates Relief Efforts as Venezuela Death Toll Rises After Twin Quakes

United Nations Secretary-General António Guterres on Thursday expressed his condolences to the people of Venezuela following the two devastating earthquakes that struck the country and highlighted the ongoing coordination between UN humanitarian teams and interim President Delcy Rodríguez.

Speaking during the UN’s daily press briefing, spokesperson Stéphane Dujarric said Guterres was deeply saddened by the loss of life and widespread destruction caused by the disaster.

“The Secretary-General is deeply distressed by the loss of life and the widespread devastation caused by the earthquakes that struck Venezuela yesterday. He extends his heartfelt condolences to the families of the victims and wishes a speedy recovery to those injured,” Dujarric stated.

Venezuela was struck on Wednesday by two powerful earthquakes measuring 7.2 and 7.5 in magnitude. According to official figures, the disaster has left at least 164 people dead and 971 others injured.

Dujarric noted that preliminary reports indicate significant damage across several states, including the capital, Caracas. Numerous casualties have been reported, while other individuals remain trapped beneath collapsed structures or are still missing.

“Critical infrastructure has been damaged and essential services have been disrupted,” the spokesperson said.

The United Nations confirmed that its humanitarian team remains in close contact with interim President Delcy Rodríguez and other relevant authorities as emergency operations continue.

To support relief efforts, the UN has established a coordination center in Caracas and is assisting local authorities to ensure that humanitarian aid reaches affected communities as quickly and efficiently as possible.

Guterres also welcomed the expressions of solidarity and offers of assistance from countries around the world that responded following news of the disaster, underscoring the importance of international cooperation in addressing the humanitarian emergency.

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