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
Brazil’s Bolsonaro Returns to Prison After Supreme Court Denies House Arrest
Former Brazilian president Jair Bolsonaro left a hospital in Brasília on Thursday after spending more than a week admitted and returned to prison, after the Supreme Court denied his request for house arrest, an AFP journalist reported.
Bolsonaro, 70, departed the DF Star Hospital under a police motorcycle escort and was transferred back to a small room at a police facility, where he is serving a 27-year sentence for attempting to stage a coup to remain in power after losing the 2022 election to Luiz Inácio Lula da Silva.
The nine-day hospitalization marked Bolsonaro’s first time outside custody since his imprisonment. His legal team had requested house arrest on health grounds following surgery last week for an inguinal hernia, arguing there was a “concrete risk of sudden deterioration” in his condition. He was also treated for recurring bouts of hiccups.
However, Supreme Court Justice Alexandre de Moraes rejected the request, stating that, contrary to the defense’s claims, there had been no worsening of Bolsonaro’s health condition. The former right-wing leader was admitted to the hospital on December 24 and underwent surgery the following day.
International
Regional mexican music mourns the death of Banda Gota de Oro singer Giovanni Vera
Regional Mexican music is mourning the death of Giovanni Vera, lead vocalist of the band Banda Gota de Oro, who was among the victims of an armed attack that occurred on Sunday, December 28, in the Mexican state of Guanajuato.
The incident took place inside a residence located in the Los Presidentes neighborhood, in the municipality of Irapuato.
According to preliminary reports, several people were gathered at the house when armed men burst in and opened fire on those present. The attack left five people dead, including the singer.
Hours after the shooting, Banda Gota de Oro confirmed Vera’s death through its official Instagram account. In one of the posts, the group expressed its grief with an emotional message: “Today, the sky is dressed for a celebration because you are singing up there. Your voice and your joy will live on forever within us.”
Messages of support and condolences from fans and fellow musicians quickly flooded social media, paying tribute to the artist and expressing solidarity with his family and bandmates.
International
One Dead, Three Injured in Shooting at Cree Nation in Saskatchewan
One person was killed and three others were injured in a shooting reported early Tuesday in the Big Island Lake Cree Nation, in the Canadian province of Saskatchewan, according to local media.
Police said they were alerted to the incident in a remote area located approximately 392 kilometers northwest of the city of Saskatoon. Authorities issued a dangerous persons alert for two suspects, who were described as armed.
Saskatchewan police urged residents to seek shelter immediately, lock their doors, and avoid the area while the situation remains under investigation. Officers are working to determine whether the shooting was a targeted attack or a random act of violence.
As a precautionary measure, seven health-care facilities in the surrounding area were placed under lockdown, Saskatchewan Premier Scott Moe said in a post on X.
Brazil’s Bolsonaro Returns to Prison After Supreme Court Denies House Arrest
Regional mexican music mourns the death of Banda Gota de Oro singer Giovanni Vera
One Dead, Three Injured in Shooting at Cree Nation in Saskatchewan
Tec de Monterrey honors one of its students for his contribution to nanotechnology in medicine
Defense Minister commends salvadoran soldier for Central American Cross Country victory
Extension of the state of emergency approved in southern Chile
-
International4 days agoMan accused of killing nine in Paramaribo dies by suicide in police custody
-
International3 days agoMexico’s President Visits Victims After Train Derailment Kills 13 in Oaxaca
-
International3 days agoOne Dead, Three Injured in Shooting at Cree Nation in Saskatchewan
-
International4 days agoSix killed, including baby, in armed attack near tourist beach in Ecuador
-
International5 days agoWinter storm disrupts holiday travel, forcing 1,500 flight cancellations in the U.S.
-
International9 hours agoBrazil’s Bolsonaro Returns to Prison After Supreme Court Denies House Arrest
-
International2 days ago
Regional mexican music mourns the death of Banda Gota de Oro singer Giovanni Vera