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
Trump: U.S. has hit three venezuelan narco boats in Caribbean
U.S. President Donald Trump said Tuesday that American forces have struck three suspected Venezuelan drug-trafficking vessels in the Caribbean so far, not two as previously reported.
“We took down boats. It was actually three boats, not two, but you only saw two,” Trump told reporters at the White House before departing for a state visit to the United Kingdom.
The president was asked about remarks by Venezuelan leader Nicolás Maduro, who accused Washington of plotting to invade his country.
“Stop sending members of the Tren de Aragua to the United States. Stop sending drugs to the United States,” Trump responded.
The Republican leader mentioned this third vessel a day after announcing that U.S. forces had struck a speedboat in which, according to him, three “terrorists” were killed. Later, from the Oval Office, he claimed the boat had been carrying cocaine and fentanyl.
The attacks come amid escalating tensions between Washington and Caracas, as the U.S. military maintains a Caribbean deployment under the banner of counter-narcotics operations.
The Trump administration accuses Maduro of heading the so-called Cartel of the Suns, which the Venezuelan government denies. Washington has also offered a $50 million reward for information leading to Maduro’s capture.
On Monday, Maduro said communications with the U.S. were “broken” in the face of what he called an “aggression” and declared that Venezuela is now “better prepared” in case of an “armed struggle.”
International
Ecuador’s Noboa declares State of Emergency in seven provinces amid fuel price protests
Ecuadorian President Daniel Noboa declared a state of emergency on Tuesday in seven provinces due to what he described as “serious internal unrest,” as road blockades and demonstrations erupted in response to the elimination of the diesel subsidy and growing concerns over insecurity.
The 60-day measure applies to the provinces of Carchi, Imbabura, Pichincha, Azuay, Bolívar, Cotopaxi, and Santo Domingo de los Tsáchilas.
Since Monday, partial protests have been reported in Pichincha, Carchi, Azuay, and Imbabura. On Tuesday, road blockades extended to northern Pichincha and routes in Carchi, near the Colombian border. In response, the Executive headquarters was temporarily relocated to Cotopaxi and the Vice Presidency to Imbabura.
The presidential decree states that the measure comes amid “strikes that have disrupted public order and provoked acts of violence, endangering the safety of citizens and their rights to free movement, work, and economic activity.”
According to the decree, the goal is to “prevent the radicalization of disruptive actions” in the affected provinces and to limit the impact on the population. It further emphasizes that the situation requires an “exceptional intervention by state institutions to safeguard security, guarantee citizens’ rights, maintain public order, and preserve social peace.”
Social organizations and labor groups, including the Confederation of Indigenous Nationalities of Ecuador (Conaie), have strongly rejected the diesel price increase following the subsidy’s elimination.
The decree justifies the two-month duration as necessary “to ensure a strengthened state presence in the affected territories, restore order, and prevent further acts of violence against people, public, and private property.”
International
Colombia’s special peace tribunal hands down first sentence against former FARC leaders
Seven former rebel leaders, including their last known commander Rodrigo Londoño, alias “Timochenko,” have been handed the maximum penalty established in the 2016 peace agreement.
Under the ruling, they will face mobility restrictions and be required to carry out activities aimed at restoring the dignity of victims, such as helping locate missing persons and participating in landmine clearance in territories where they once operated. These alternative sentences to prison were part of the historic deal signed in 2016 between the Revolutionary Armed Forces of Colombia (FARC) —once the most powerful guerrilla group in Latin America— and then-President Juan Manuel Santos, Nobel Peace Prize laureate.
The Special Jurisdiction for Peace (JEP) found the ex-commanders guilty of being responsible for the kidnapping of 21,396 people before laying down their arms and transitioning into a political party. “Investigations showed that kidnapping became a systematic practice. These crimes not only broke the law but also left open wounds that persist in families, communities, and the daily life of the country,” a magistrate told reporters in Bogotá, in the absence of the former commanders, who had accepted responsibility for their crimes back in 2022.
It took the tribunal more than seven years to deliver its first ruling, amid criticism from opponents of the peace deal who argue it is too lenient on the rebels. The former commanders still face charges for other crimes against humanity, including the recruitment of minors.
During their decades-long conflict, the FARC held hostage soldiers, police officers, businesspeople, and political leaders, including French-Colombian Ingrid Betancourt. Images of emaciated captives chained in jungle camps shocked the world and became symbols of the conflict.
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