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
El Chapo’s son Joaquín Guzmán López pleads guilty to U.S. drug trafficking charges
Joaquín Guzmán López, one of the sons of notorious Mexican drug lord Joaquín “El Chapo” Guzmán, pleaded guilty on Monday to drug trafficking charges in a U.S. court, months after his brother Ovidio reached a similar plea agreement, according to local media reports.
The defendant appeared before a federal court in Chicago early Monday afternoon and changed his previous plea in the case, the Chicago Tribune reported. U.S. authorities accuse him of forming, together with his three brothers, the cartel faction known as “Los Chapitos.”
The group is believed to have continued the operations of El Chapo, who has been serving a life sentence in the United States since 2019.
Guzmán López, 39, was arrested after landing in Texas in a small aircraft alongside cartel co-founder Ismael “El Mayo” Zambada.
International
Venezuela authorizes return flights as U.S. continues deportations amid rising tensions
The arrival of U.S. aircraft carrying undocumented Venezuelan migrants continued regularly despite rising tensions between Washington and Caracas over President Donald Trump’s military deployment in the Caribbean.
Trump maintains that the deployment is part of an anti-narcotics operation, while Venezuelan President Nicolás Maduro insists the true objective is to remove him from power and seize the nation’s oil resources.
Venezuela’s aviation authority has “received a request from the United States government to resume repatriation flights for Venezuelan migrants from that country to Venezuela,” the Ministry of Transportation said in a statement .
“Under the instructions of President Nicolás Maduro, authorization has been granted for these aircraft to enter our airspace,” it added.
Caracas will permit two Eastern Airlines flights to land on Wednesday and Friday.
Migration remains one of the Trump administration’s flagship issues. On Monday, the U.S. president held a meeting with his National Security Council to discuss the situation in Venezuela, a day after confirming he had spoken with Maduro by phone, without offering further details.
According to the Venezuelan government, roughly 75 deportation flights have been carried out this year, returning at least 13,956 Venezuelans from the United States.
International
20,000 rounds stolen from german army after driver leaves cargo unattended
The German army confirmed the theft of a shipment of ammunition that occurred a week ago while it was being transported by a civilian delivery driver, a military spokesperson told AFP, confirming earlier media reports.
According to Der Spiegel and the regional broadcaster MDR, around 20,000 rounds of ammunition were stolen from an unguarded parking lot near Magdeburg, in eastern Germany, while the driver was asleep in a nearby hotel. No information has been released regarding the identity of the suspects, and the military declined to specify the exact type or amount of ammunition taken.
Authorities have also not indicated how the perpetrators knew the cargo would be left unattended.
“The theft was discovered upon delivery at the barracks,” the German army spokesperson said.
A police spokeswoman confirmed to AFP that an investigation has been opened but refused to provide further details “for tactical reasons.”
Sources close to the German military, cited by Der Spiegel, believe it is unlikely the theft was a coincidence. They suspect the thieves waited for the driver to stop for the night before striking.
Der Spiegel also reported that the Defense Ministry normally requires two drivers for this type of transport to ensure the cargo is constantly monitored. However, in this case only one driver was assigned, meaning the civilian transport company failed to comply with the security protocols.
El Chapo’s son Joaquín Guzmán López pleads guilty to U.S. drug trafficking charges
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