International

NASA spaceship deflected asteroid in test to save Earth

Photo: Jim Watson / AFP

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.

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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.

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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.

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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.

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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

Football Fan Killed in Clashes After Colombian League Match

Fans of Cúcuta Deportivo and their traditional rivals Atlético Bucaramanga clashed outside the stadium following their local league match on Tuesday, leaving one supporter dead and several others injured.

The deceased fan was stabbed, according to a senior police official in Cúcuta who confirmed the cause of death in a video statement. Local media reported that the victim was a supporter of the visiting team, Atlético Bucaramanga.

The match ended in a 2-2 draw. Authorities had banned the entry of Atlético Bucaramanga’s organized supporters into the stadium in an effort to prevent disturbances.

Despite the restrictions, violence broke out in the surrounding areas after the game. Among the injured were three police officers, an institutional source told AFP.

The incident adds to a series of recent violent episodes linked to Colombian football. The most recent occurred in December, when supporters of Atlético Nacional and Independiente Medellín clashed in the stands and on the pitch, leaving 59 people injured.

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International

Missing Spanish Sailor Rescued After 11 Days Adrift in Mediterranean

The man had departed from the port of Gandía, on Spain’s eastern coast, with the intention of reaching the southern Spanish town of Guardamar del Segura, a journey of about 150 kilometers, a spokesperson for Spain’s maritime rescue service told AFP.

Search boats and aircraft were deployed on January 17, but the operation was called off on January 22 after efforts proved unsuccessful. Alerts were then issued to vessels navigating the area in case they spotted any signs of the missing sailor.

As hopes were fading, a surveillance aircraft from the European Union’s border agency Frontex spotted the sailboat on Tuesday, along with a person signaling for help, approximately 53 nautical miles northeast of Bejaia, Algeria.

A nearby vessel, the Singapore-flagged bulk carrier Thor Confidence, carried out the rescue and is expected to bring the man to an end to his ordeal when it arrives on Thursday in the southern Spanish port city of Algeciras.

Maritime rescue services shared images on social media showing a small white sailboat drifting at sea and secured alongside the much larger ship.

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It remains unclear how the sailboat ended up hundreds of kilometers off its intended route or how the man managed to survive for so long alone in open waters.

International

Rubio Says U.S. Could Participate in Follow-Up Russia-Ukraine Talks

The United States could join a new round of talks this week aimed at ending Russia’s invasion of Ukraine, Secretary of State Marco Rubio said on Tuesday.

Teams from Kyiv and Moscow met last Friday and Saturday in Abu Dhabi in their first publicly acknowledged direct negotiations to discuss the peace initiative promoted by former U.S. President Donald Trump.

“They are going to hold follow-up talks again this week,” Rubio told the Senate Foreign Relations Committee. “There could be U.S. participation.”

However, Rubio suggested that Washington’s role may be more limited than during last week’s discussions, which included Steve Witkoff, the president’s special envoy, and Jared Kushner, Trump’s son-in-law.

The secretary of state indicated that progress may have already been made on security guarantees for Ukraine, one of Kyiv’s key demands in any agreement with Moscow after nearly four years of Russian invasion.

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“There is one remaining issue that everyone is familiar with, and that is the territorial claim over Donetsk,” Rubio said, referring to the eastern Ukrainian region that Russia wants Ukraine to cede.

“I know that active efforts are underway to see whether the positions of both sides on this issue can be reconciled. It remains a bridge we have not yet crossed,” he added during the hearing.

Rubio acknowledged that the territorial question would be particularly difficult for Ukraine to resolve.