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

Two killed in shooting at restaurant near Frankfurt Airport

Two people were shot dead early Tuesday at a restaurant in Raunheim, near Frankfurt Airport, according to local police.

Preliminary findings indicate that an armed individual entered the establishment at around 03:45 local time (02:45 GMT) and opened fire on the victims, who died at the scene from their injuries.

The suspect fled and remains at large, while the motive behind the shooting is still unclear, German media reported. Authorities have launched a large-scale search operation.

International

U.S. counterterrorism chief resigns over opposition to war in Iran

Joe Kent, director of the National Counterterrorism Center, announced Tuesday that he has resigned from his post, citing his opposition to the ongoing war in Iran.

In a post on X, Kent said he could not, “in good conscience,” support the conflict, arguing that Iran did not pose an imminent threat to the United States. He also claimed that the war was driven by pressure from Israel and its lobbying influence in Washington.

In a resignation letter addressed to Donald Trump, Kent alleged that at the start of the current administration, senior Israeli officials and influential figures in U.S. media carried out a disinformation campaign that undermined the “America First” platform and fostered pro-war sentiment aimed at triggering a conflict with Iran.

Kent further stated that he could not support sending a new generation of Americans to “fight and die in a war that provides no benefit to the American people and does not justify the cost in American lives.”

Since the United States and Israel launched attacks against Iran on February 28, at least 13 U.S. service members have been killed, while 10 others have been seriously wounded and around 200 have sustained minor injuries, according to a report published by The Wall Street Journal.

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International

German president warns Iran war could spread and disrupt Strait of Hormuz

The president of Germany, Frank-Walter Steinmeier, warned Monday that the war involving Iran could expand and further disrupt shipping through the strategic Strait of Hormuz. He urged a swift end to hostilities between Iran, United States and Israel.

Speaking in Panama City during a joint appearance with Panamanian President José Raúl Mulino, Steinmeier said available information suggests Iran has significant capacity to disrupt maritime traffic through the key oil route.

“Iran has considerable potential to interfere with shipping through the Strait of Hormuz,” Steinmeier said through an interpreter. “We should therefore reach an end to the hostilities as soon as possible and call on all parties involved to make that happen.”

The remarks came during Steinmeier’s visit to Panama, the first by a German president to the Central American nation.

The German leader described the possibility of the conflict spreading as “very dangerous,” saying recent developments indicate that such a scenario cannot be ruled out.

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Over the weekend, U.S. President Donald Trump urged allied nations to help ensure safe passage for ships through the Strait of Hormuz after Iran moved to block the waterway in response to U.S. strikes. However, several allies—particularly in Europe—have shown little support for the proposal.

“Some are very enthusiastic, others are not, and some are countries we have helped for many years,” Trump told reporters at the White House. “We have protected them from terrible external threats, and they’re not that enthusiastic. And the level of enthusiasm is important to me.”

Meanwhile, Kaja Kallas, the European Union’s top diplomat, said the Strait of Hormuz falls “outside NATO’s scope” and stressed that “the war involving Iran is not Europe’s war.”