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
Archbishop Wenski criticizes Trump’s deportation policies, calls for stronger push for reform
The Archbishop of Miami, Thomas Wenski, has called for increased pressure on the U.S. Congress to advance comprehensive immigration reform and criticized President Donald Trump’s mass deportation policies, arguing that they “do nothing to help.”
“We need to apply more pressure on Congress so lawmakers can make the necessary changes. It is also important for the Administration to listen to our voice. We do not want to be anyone’s enemy—we are Americans,” Wenski said in an interview with EFE.
The religious leader, who heads one of the dioceses with the largest Latino and Haitian populations in the United States, issued a call to defend the rights of migrants. He also emphasized that the U.S. Conference of Catholic Bishops (USCCB) has maintained a strong and public stance in favor of migrants for decades.
International
Trump relaunches diplomatic push to finalize U.S.-Backed peace plan for Ukraine War
U.S. President Donald Trump announced on Tuesday that his diplomatic team will resume meetings with delegations from Russia and Ukraine in an effort to pressure both sides to accept the peace plan proposed by Washington to end the war in Ukraine.
As part of this new round of talks, U.S. Special Envoy Steve Witkoff will travel to Moscow to meet with Russian President Vladimir Putin. Meanwhile, Army Secretary Dan Driscoll will hold discussions with Ukrainian representatives to narrow differences on the remaining points of the agreement.
Trump also confirmed his intention to meet personally with Ukrainian President Volodymyr Zelensky and with Putin, though he emphasized that such meetings will only take place “when the agreement is fully finalized or in its final stage.”
The president claimed that his administration has made “tremendous progress” toward resolving the conflict and reiterated that the war “never would have started” if he had been in the White House at the onset of the crisis.
The U.S.-backed peace plan consists of 28 points and has been revised following feedback from both sides. According to Trump, only “a few points of disagreement” remain under active discussion.
One of the most controversial aspects of the proposal is the suggestion that Ukraine cede parts of the Donbas region to Russia and limit the size of its armed forces. Kyiv is working closely with Washington to soften these clauses in search of an arrangement that does not compromise its sovereignty or security.
With this diplomatic push, Trump aims to solidify his role as the main mediator in the conflict and steer the war toward a political resolution after years of devastation, humanitarian crisis, and rising global geopolitical tensions.
International
Man pleads not guilty in Liverpool parade incident that injured more than 130
Paul Doyle, who has been held in provisional detention since the incident, is accused of intentionally injuring 12 people, attempting to injure another 17, and committing acts of violence and dangerous driving.
According to prosecutors, eight of the victims were minors at the time, including a six-month-old baby.
Wearing a black suit, the 54-year-old defendant broke into tears as the jury entered Liverpool Crown Court, in northwest England. Doyle, a father of three and former member of the Royal Navy, had pleaded not guilty in September to the 31 charges against him.
On Tuesday, he reaffirmed his not-guilty plea when asked to respond again to four of the charges, which had been slightly amended. The jury was sworn in the same day, and the trial—expected to last three to four weeks—will begin on Wednesday.
The incident occurred on May 26, when thousands of Liverpool FC supporters were gathered for a parade celebrating the club’s Premier League victory. According to the investigation, Doyle’s car entered a street that had just been reopened to allow an ambulance through.
His vehicle was then surrounded by a crowd of Liverpool supporters, some of whom acted aggressively. Doyle first reversed, then accelerated forward, swerving and striking people on both sides of the street. According to an initial report from Merseyside Police, 134 people were injured.
Firefighters reported that one man was thrown onto the hood of the vehicle and four people, including a child, were trapped underneath the car.
Doyle was arrested at the scene. Police quickly ruled out any terrorist motive, stating instead that it was an isolated incident.
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