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 Orders Construction of New ‘Golden Fleet’ to Revitalize U.S. Naval Superiority
President Donald Trump issued an executive order this Monday for the immediate construction of two new warships that will bear his name. These vessels will be the pioneers of what he described as the “Golden Fleet,” a future generation of “Trump-class” battleships that he claimed would be “100 times more powerful” than those currently in service.
The announcement took place at his private residence in Mar-a-Lago, Florida. The President indicated that following the initial two ships, the administration aims to commission up to 25 additional vessels. He is scheduled to meet with Florida-based contractors next week to expedite production, criticizing existing defense firms for failing to deliver results efficiently.
This naval expansion is a cornerstone of Trump’s goal to revitalized the American shipbuilding industry and address the strategic gap between the U.S. and competitors like China.
The move comes amid heightened geopolitical tension. Just last week, Trump ordered the seizure of all sanctioned tankers involved with Venezuela’s “ghost fleet” to cripple the country’s crude oil industry. Since December 10, the U.S. military—deployed in the Caribbean under the guise of counter-narcotics operations—has already detained two tankers linked to Venezuelan oil transport.
International
U.S. Judge Blocks ICE from Re-detaining Salvadoran Erroneously Deported Under Trump Administration
A U.S. federal judge ruled this Monday, December 22, that Immigration and Customs Enforcement (ICE) is prohibited from re-detaining Salvadoran national Kilmar Ábrego García, who was erroneously deported to El Salvador earlier this year during the administration of President Donald Trump.
During a hearing in Maryland, U.S. District Judge Paula Xinis ruled that Ábrego García must remain free on bail through the Christmas holidays, concluding that his initial detention lacked a legal basis. The ruling follows a request from his legal team for a temporary restraining order to prevent ICE from carrying out a new arrest.
Earlier this month, on December 11, Judge Xinis ordered his release from a Pennsylvania migrant detention center after determining that the government had detained him without a formal deportation order. In 2019, an immigration judge had already ruled that Ábrego could not be returned to El Salvador because his life was in danger.
Despite that protection, Ábrego García was deported in March 2025 following a raid by the Trump administration. Officials argued at the time that he was a gang member, and he was sent directly to the Center for the Confinement of Terrorism (CECOT) in El Salvador. In June, he was returned to the United States to face a new trial for alleged human smuggling—a charge he denies.
On Monday, Judge Xinis also temporarily invalidated a new deportation order issued by an immigration judge following Ábrego’s recent release, granting him legal protection through the coming weeks. His trial is scheduled to begin in Tennessee in January 2026.
International
Fire at substation triggers major blackout in San Francisco
The U.S. city of San Francisco was plunged into darkness Saturday night after a power outage left about 130,000 customers without electricity, although the utility company said service was restored to most users within hours.
Pacific Gas & Electric Company (PG&E) said in a statement posted on X that nearly 90,000 homes had their power restored by 9:00 p.m. local time (05:00 GMT on Sunday), while the remaining 40,000 customers were expected to have service restored overnight.
Large areas of the city, a major technology hub with a population of around 800,000, were affected by the blackout, which disrupted public transportation and left traffic lights out of service during the busy weekend before Christmas, a crucial period for retail businesses.
“I know it’s been a difficult day,” San Francisco Mayor Daniel Lurie said in a video posted on social media from the city’s emergency operations center. “There has been progress, but for those still without power, we want to make sure they are safe and checking in on their neighbors,” he added.
Lurie said police officers and firefighters advised residents to stay home as much as possible. He also noted that officers and traffic inspectors were deployed to manage intersections where traffic lights were not functioning.
The mayor confirmed that the outage was caused by a fire at an electrical substation. Parts of the city were also covered in fog, further complicating conditions during the incident.
As a result of the blackout, many businesses were forced to close despite it being the weekend before Christmas. The sudden drop in shopper traffic ahead of the holiday is “devastating” for retailers, the manager of home goods store Black & Gold told the San Francisco Chronicle.
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