International
NASA spaceship deflected asteroid in test to save Earth
AFP / Issam Ahmed
NASA on Tuesday said it had succeeded in deflecting an asteroid in a historic test of humanity’s ability to stop an incoming cosmic object from devastating life on Earth.
The fridge-sized Double Asteroid Redirection Test (DART) impactor deliberately smashed into the moonlet asteroid Dimorphos on September 26, pushing it into a smaller, faster orbit around its big brother Didymos, said NASA chief Bill Nelson.
“DART shortened the 11 hour 55 minute orbit to 11 hours and 23 minutes,” he said. Speeding up Dimorphos’ orbital period by 32 minutes exceeded NASA’s own expectation of 10 minutes.
“We showed the world that NASA is serious as a defender of this planet,” added Nelson.
The asteroid pair loop together around our Sun every 2.1 years, and pose no threat to our planet.
But they are ideal for studying the “kinetic impact” method of planetary defense, in case an actual approaching object is ever detected.
DART’s success as a proof-of-concept has made a reality of science fiction — notably in films such as “Armageddon” and “Don’t Look Up.”
Astronomers rejoiced in stunning images of matter spreading out thousands of miles in the wake of the impact — pictures collected by Earth and space telescopes, as well as a mini satellite that had traveled to the zone with DART.
Pseudo-comet
Thanks to its temporary new tail, Dimorphos, which is 530-foot (160-meter) in diameter or roughly the size of a big Egyptian pyramid, has turned into a manmade comet.
But quantifying just how well the test worked required an analysis of light patterns from ground telescopes, which took a few weeks to become apparent.
The binary asteroid system, which was around 6.8 million miles (11 million kilometers) from Earth at impact, is visible only as a single dot from the ground.
Ahead of the test, NASA scientists said the results of the experiment would reveal whether the asteroid is a solid rock, or more like a “rubbish pile” of boulders bound by mutual gravity.
If an asteroid is more solid, the momentum imparted by a spaceship will be limited. But if it is “fluffy” and significant mass is pushed at high velocity in the opposite direction to impact, there will be an additional boost.
Never actually photographed before, Dimorphos appeared as a speck of light around an hour before impact.
Its egg-like shape and craggy, boulder-dotted surface finally came into clear view in the last few moments, as DART raced toward it at roughly 14,500 miles (23,500 kilometers) per hour.
Mass extinction
Very few of the billions of asteroids and comets in our solar system are considered potentially hazardous to our planet, and none are expected in the next hundred years or so.
But wait long enough, and it will happen.
The geological record shows, for example, that a six-mile wide asteroid struck Earth 66 million years ago, plunging the world into a long winter that led to the mass extinction of the dinosaurs along with 75 percent of all species.
An asteroid the size of Dimorphos, by contrast, would only cause a regional impact, such as devastating a city.
Kinetic impact with a spaceship is just one way to defend the planet, albeit the only method possible with current technology.
Should an approaching object be detected early, a spaceship could be sent to fly alongside it for long enough to divert its path via using the ship’s gravitational pull, creating a so-called gravity tractor.
Another option would be launching nuclear explosives to redirect or destroy an asteroid.
NASA believes the best way to deploy such weapons would be at a distance, to impart force without blowing the asteroid to smithereens, which could further imperil Earth.
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People sit at their workstations within the Mission Operations Center during the Double Asteroid Redirection Test (DART) Technology Media Workshop Telecon Briefing and tour at the Johns Hopkins Applied Physics Laboratory in Laurel, Maryland, on September 12, 2022, ahead of the September 26th project test mission. - The goal of the DART mission, which launched in November 2021, is to hit an asteroid with a spacecraft to slightly alter its trajectory. (Photo by Jim WATSON / AFP)
International
King Charles III Says U.S.-UK Alliance Is “Irreplaceable and Unbreakable”
King Charles III of the United Kingdom reaffirmed the strength of the British-American relationship on Tuesday during a speech before the United States Congress, describing the alliance between the two nations as “irreplaceable and unbreakable.”
The address, delivered at the Capitol, marked the first speech by a British monarch before Congress since Queen Elizabeth II in 1991 and comes at a time of political tensions between Donald Trump’s administration and the Labour government of Prime Minister Keir Starmer.
“As President Trump himself observed during his state visit to Britain last autumn, the bond of kinship and identity between the United States and the United Kingdom is invaluable and eternal. It is irreplaceable and unbreakable,” the king said.
While reflecting on the upcoming 250th anniversary of U.S. independence, which will be commemorated this year, Charles III stated that the partnership between the two countries “was born out of disagreement, but is no less strong because of it.”
The monarch emphasized the democratic values shared by both nations and noted that major global changes have occurred whenever the two allies found common ground.
“When we have found that way to agree, great changes have taken place not only for the benefit of our peoples, but for all peoples,” he said.
King Charles also quoted British Prime Minister Keir Starmer, who recently described the relationship as “an indispensable alliance.”
Concluding his speech, the monarch described the shared history of the United States and the United Kingdom as “a story of reconciliation, renewal, and an extraordinary partnership.”
He added that Washington and London have forged “one of the most consequential alliances in human history.”
“I pray with all my heart that our alliance continues to defend our shared values, together with our partners in Europe, the Commonwealth, and around the world, and that we ignore calls urging us to become increasingly isolationist,” Charles III stated.
The king ended by urging both nations to “recommit to one another in selfless service to our peoples and to all peoples of the world.”
International
Trump Administration Considers Denying Green Cards Over Political Views
The administration of President Donald Trump is evaluating new immigration guidelines that could deny permanent residency to immigrants based on their political views, according to a report published by The New York Times.
The proposed measures, outlined in internal Department of Homeland Security documents, would instruct immigration officials to take applicants’ public expressions and ideological positions into account when reviewing green card applications.
According to the report, cases involving “possible anti-American and/or antisemitic conduct or ideologies” would need to be referred to higher authorities for additional review.
Even if applicants have not violated any laws, authorities could still reject residency requests if they determine that individuals have “endorsed, promoted, or supported anti-American views.”
Among the factors listed in the guidelines are participation in pro-Palestinian activities, actions considered antisemitic, and the burning of the U.S. flag.
The documents reportedly describe such actions as “heavily negative” factors in immigration evaluations, potentially blocking applicants from obtaining permanent residency and, eventually, U.S. citizenship.
The directives also place particular attention on demonstrations held on university campuses following the 2023 Hamas attacks against Israel.
However, flag burning has previously been recognized by the U.S. Supreme Court as a form of protected free speech under the Constitution.
The proposal has sparked criticism from immigrant advocacy organizations, including the New York Immigration Coalition.
Its president, Murad Awawdeh, warned that the policies could pose a threat to fundamental rights and freedoms.
International
Mexico Arrests CJNG Leader “El Jardinero” in Nayarit
Mexican authorities arrested Audias Flores, known as “El Jardinero,” on Monday during a naval operation in the western state of Nayarit, delivering another major blow to the Cártel Jalisco Nueva Generación (CJNG).
Flores was considered one of the top regional leaders within the cartel and had reportedly overseen criminal operations along Mexico’s Pacific coast. Security analysts viewed him as a potential successor to slain drug kingpin Nemesio Oseguera.
The arrest was carried out by Mexico’s Navy Special Forces in a planned operation, according to Security Minister Omar García Harfuch.
The United States Department of the Treasury had previously identified Flores as a “significant foreign narcotics trafficker,” while U.S. authorities offered a reward of up to $5 million for information leading to his capture and extradition.
A U.S. grand jury indicted Flores in 2021 on charges including conspiracy to distribute cocaine and heroin.
His capture comes months after the reported death of “El Mencho,” an operation that Mexican authorities considered a priority due to the cartel leader’s alleged involvement in a 2020 assassination attempt against García Harfuch.
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