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
Authorities Say Teotihuacán Gunman Was Obsessed With Mass Shootings and Extremist Symbolism
Julio César Jasso Ramírez, identified by authorities as the gunman behind the armed attack at the archaeological site of Teotihuacán, had allegedly spent years building a personal narrative shaped by an obsession with historical mass shootings, extremist symbolism, and an increasing detachment from reality.
According to preliminary findings from the Fiscalía General de Justicia del Estado de México, the 27-year-old suspect, originally from the southern Mexican state of Oaxaca, acted alone and appeared to have carefully planned the attack.
Investigators also pointed to signs of a severe psychological or psychiatric disorder. One official involved in the case stated that the suspect seemed to live in “his own reality,” disconnected from the world around him.
“I would not speak of a motive; I would speak of psychopathy, a condition, an illness,” the official said while discussing the ongoing investigation.
Authorities reported that Jasso Ramírez was allegedly fixated on mass violence incidents that occurred outside Mexico, particularly in the United States.
Among the items found in his possession were writings, images, and materials reportedly linked to the Columbine High School massacre, the school shooting that took place on April 20, 1999.
The investigation remains ongoing as authorities continue analyzing evidence connected to the suspect’s background and mental state.
International
Iran refuses to reopen strait of Hormuz amid ongoing U.S. Naval blockade
Iran reaffirmed on Wednesday that it will not reopen the Strait of Hormuz while the United States maintains its naval blockade against Iranian ports and vessels, amid rising geopolitical tensions in the region.
Iranian Parliament Speaker Mohamad Baqer Qalibaf warned that reopening the crucial maritime route depends on Washington honoring the ceasefire agreement. According to Qalibaf, Iran considers the deal to be violated due to ongoing U.S. actions.
The Iranian official accused the United States of carrying out a “naval blockade and the hijacking of the global economy,” while also pointing to Israeli military operations in Lebanon as part of the broader conflict affecting the region.
Qalibaf stated that military and economic pressure would not force Iran to change its position. “The United States and Israel failed to achieve their goals through military aggression, and they will not succeed through intimidation. The only path forward is to recognize the rights of the Iranian nation,” he said.
His remarks come amid stalled negotiations between Iran and the United States following direct talks held on April 11 and 12 in Islamabad.
The discussions, led by U.S. Vice President JD Vance and Iranian representatives, have shown little progress in recent days, increasing uncertainty over whether dialogue between the two sides will resume.
U.S. President Donald Trump recently announced an extension of the ceasefire but decided to keep the naval blockade in place, a move Tehran considers incompatible with ongoing negotiations.
Meanwhile, Iran’s Islamic Revolutionary Guard Corps intensified operations in the area by seizing two vessels in the Strait of Hormuz, accusing them of operating without the required permits and escorting them into Iranian territory.
The Strait of Hormuz remains one of the world’s most critical oil trade routes, and any prolonged disruption could have significant consequences for global energy markets.
International
Maradona’s daughter accuses medical team of “horrible manipulation” in court
One of the daughters of Diego Maradona testified in court this Tuesday, breaking down in tears as she denounced what she described as “absolute and horrible manipulation” by her father’s medical team, during an emotional hearing in Argentina.
Gianinna Maradona stated that she and her siblings agreed to home hospitalization after doctors presented it as the best option following the neurosurgery Maradona underwent on November 3, 2020.
The football icon died on November 25 of that year, and the ongoing trial seeks to determine whether the conditions of his home care were appropriate.
According to Gianinna, what the family found at the residence where Maradona was recovering did not match what had been promised. She testified that there was no adequate medical equipment, constant monitoring, or even an ambulance available, despite assurances of continuous care.
“The manipulation was absolute and horrible,” she said during the hearing in San Isidro, near Buenos Aires.
She accused members of the medical team, including neurosurgeon Leopoldo Luque, psychiatrist Agustina Cosachov, and psychologist Carlos Díaz, of misleading the family.
“I trusted these people, and all they did was manipulate us and leave my son without a grandfather,” she added.
Later in her testimony, recalling that six years have passed since her father’s death, she became emotional and said she struggled deeply with grief in the aftermath.
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