International
Learn about seven important NASA discoveries
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.
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).
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.
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.
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.
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
U.S. Health Department says CDC grants no longer match agency priorities
The Department of Health will cut $600 million in funding for four Democratic-led states that had been allocated to public health programs run through the Centers for Disease Control and Prevention (CDC), U.S. media reported.
The reductions will affect California, Colorado, Illinois and Minnesota, removing money from public initiatives as well as partnerships with non-governmental organizations. According to the New York Post, some of the funding will expire as soon as this week, with the remainder set to stop being distributed next week.
The move impacts programs tied to workforce hiring, system modernization and epidemic management, as well as efforts to protect vulnerable communities, The New York Times reported after reviewing an official document detailing the cuts.
A spokesperson for the Department of Health told the newspaper that the reductions are being made because the funds “do not reflect” the agency’s current priorities, even though Congress had already approved them for disbursement.
International
Colombia to Send High-Level Delegation to Ecuador to Ease Trade Tensions
Colombia’s Ministry of Foreign Affairs confirmed on Friday that, at the instruction of President Gustavo Petro, a high-level delegation will travel to Ecuador in an effort to normalize bilateral relations, which have deteriorated following the imposition of reciprocal tariffs.
“In line with Colombia’s policy of good neighborliness and the spirit of cooperation and integration that guides its foreign policy,” the Foreign Ministry said in a statement, adding that the delegation will be led by Foreign Minister Rosa Villavicencio and Defense Minister Pedro Sánchez.
“Following instructions from the Presidency of the Republic, and as has been publicly reiterated, the Colombian delegation expects to reaffirm Colombia’s offer of support to the Republic of Ecuador to strengthen control over phenomena stemming from transnational organized crime,” the statement said.
The Foreign Ministry noted that the delegation will attend the meeting with a full willingness to engage in dialogue and to seek concrete solutions to the unilateral measures that have affected the longstanding relationship between the two neighboring countries.
Trade tensions between Ecuador and Colombia escalated on January 21, when Ecuadorian President Daniel Noboaimposed a 30% tariff on Colombian products, citing a lack of cooperation in anti-drug efforts. Colombia responded with similar measures and the suspension of energy exports, while Ecuador increased transportation costs for Colombian crude oil.
Business associations in both countries have warned that the dispute is harming both economies and have called on the governments to resolve their differences through dialogue.
International
Super Bowl Halftime Show Puts Bad Bunny—and Immigration Politics—Back in the Spotlight
The long-standing argument that sports and politics should not mix may be put to the test on Sunday during the Super Bowl halftime show, which will be headlined by Puerto Rican superstar Bad Bunny, a choice that has sparked backlash from segments of the U.S. right wing.
Just one week after his headline-making appearance at the Grammy Awards—where he sharply criticized the United States’ anti-immigration policies—Bad Bunny will once again take center stage on the global spotlight with his performance at the NFL final in Santa Clara, California.
Beyond the expectations surrounding the show itself, speculation has grown over whether the artist could again use the platform to protest policies associated with the administration of former President Donald Trump, in front of an audience expected to exceed 120 million viewers in the United States alone.
In fact, one of the most popular Super Bowl prop bets this year revolves around whether the Puerto Rican singer will deliver a direct message against ICE (U.S. Immigration and Customs Enforcement), similar to the one he delivered at the Grammys last Sunday.
While few expect Bad Bunny to repeat such a pointed statement, the mere speculation highlights the delicate balance the NFL must manage during the most-watched broadcast of the year.
The world’s most powerful sports league has drawn criticism from the MAGA movement since announcing in September that Bad Bunny would headline a halftime show largely performed in Spanish.
Trump himself declined to attend the matchup between the New England Patriots and the Seattle Seahawks, despite having made history last year as the first sitting U.S. president to attend a Super Bowl. He described the musical lineup—which also includes outspoken critics such as Green Day—as “a terrible choice” that would “sow hatred.” In response, his supporters have organized an alternative event dubbed the “All-American Halftime Show,” featuring like-minded artists such as Kid Rock.
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