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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.

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“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.

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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.

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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.

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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)

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International

The Supreme Court is skeptical of Trump’s immunity but could lengthen the litigation

The United States Supreme Court was skeptical this Thursday about Donald Trump’s request to enjoy absolute judicial immunity for having been president of the country, but there were judges who were inclined not to fully resolve the matter and return it to lower courts.

In a historic hearing of more than two hours, the nine magistrates (six conservatives and three progressives) questioned Trump’s lawyer, John Sauer, and prosecutor Michael Dreeben about the Republican’s potential immunity.

The high court must decide if Trump has absolute immunity for having been president of the country and, therefore, the trial against him pending in a federal court in Washington for electoral interference and the assault on the Capitol must be annulled.

Most judges were skeptical of Trump’s request when considering that only the actions of the functions of a president are shielded by immunity and not those that are personal.

But there were also conservative magistrates critical of the handling of the case by the Prosecutor’s Office and suggested that they could return the case to the District of Columbia Court of Appeals to determine whether Trump’s actions can be considered public or private.

Trump, a Republican pre-candidate in the elections on November 5, should extend the litigation since, if he returns to the White House, he could order the Department of Justice to close the federal accusations against him.

On the other hand, the Special Prosecutor’s Office led by Jack Smith pressures the high court to make a quick decision and the preparations for the trial of the assault on the Capitol, which should have begun on March 4 but was suspended due to Trump’s request for immunity, can be resumed.

It is unknown when the Supreme Court will issue its ruling, but it usually publishes its decisions in June, before the summer recess.

Although it is not included in the Constitution or in the laws, the active presidents of the United States have historically enjoyed immunity from judicial processes related to their functions, in order to avoid a violation of the separation between the executive and judicial branches.

Questioned by conservative judge Amy Coney Barrett, appointed by Trump himself, the Republican’s lawyer admitted that some of the actions that the former president carried out after the 2020 elections were “private” and probably not protected by immunity.

Later, the also conservative Samuel Alito pressured the prosecutor with the idea that leaving the former presidents unprotected would “destabilize” democracy because it would open the door for the new leaders to imprison their predecessors for revenge.

Progressive judges were very opposed to Trump’s absolute immunity.

Elena Kagan recalled that the drafters of the Constitution were opposed to the existence of a “monarch” who was “above the law” and Ketanji Brown Jackson suggested that the pardon that Richard Nixon received after the Watergate scandal shows that the former presidents can be prosecuted.

Unlike Trump, however, Nixon was not formally charged with any crime. His successor, Gerald Ford (1974-1977), granted him a preventive pardon for any crime he could have committed during his Presidency to prevent him from being prosecuted in the future, in a controversial decision that divided the country.

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International

José Mujica maintains that Milei is “very impulsive” and does not doubt that Brazil “will be a power”

The former president of Uruguay José Mujica assures that the Argentine president, Javier Milei, is “very impulsive” and that he “hit the entrance” when talking about his Brazilian peer, Luiz Inácio Lula da Silva, while wishing that his political project will give him a result and can prosecute the country.

“I am very sorry that Milei, who is seen to be very impulsive and very run over, kicked the doorstay because he relaxed Lula. He has every right to think what he wants, but a man at the head of a country cannot say that of a neighboring country. The relationship has been screwed up,” he says during an interview with the EFE Agency.

There he also talks about the situation in Argentina and assures that “he has many problems” that he hopes he can overcome, while emphasizing that Uruguay “it is in the best interest of it.”

“The Argentine middle class who comes to summer here if they can leave a cake of guita (money), work and everything else. That’s a value. A balanced Argentina is convenient for us. Hopefully this project that Milei has will work for him and that Argentina will be caused,” says the former Uruguayan president.

On the other hand, he talks about Brazil and assures that this nation is “in another category” and he has no doubt that it will be a power. “It is the world’s leading producer of meat and soy. Brazil plays on the big court, moves the wheel of the world,” says Mujica.

In that sense, he details that, despite “all the defects” that Mercosur has, Uruguay sells more to São Paulo than to any European country.

“We sell added value to Brazil. We sell chocolate to Brazil, which is more or less like selling ice to the Eskimos,” Mujica emphasizes.

Finally, the former Uruguayan president assures that the tensions in the region weaken it against the world and emphasizes the importance of the joint work of both countries.

“One thing is a proposal that Brazil and Argentina do together and another thing is that they do it separately. That doesn’t mean that we have to go to the kisses or we agree one hundred percent. It means that you have to have a diplomatic position that suits the region,” he concludes.

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International

The US sanctions 16 companies and 8 people linked to the Iranian drone program

The US Government imposed sanctions against 16 companies and 8 individuals linked to Iran’s drone program and its distribution to Russia for the war in Ukraine.

The United States also identified five ships and a plane as a blocked property.

Washington justified these measures against companies and individuals for “having facilitated the illicit trade and sale of unmanned aerial vehicles (UAVs) in support of the Ministry of Defense of Iran.”

Among the sanctioned entities is ‘Sahara Thunder’, which according to a statement from the State Department, is the main company that oversees the commercial activities of Modafl, the logistics branch of the Iranian Ministry of Defense.

“‘Sahara Thunder’ also plays a key role in the design, development, manufacture and sale of thousands of unmanned aerial vehicles (UAV) by Iran, many of which are finally transferred to Russia for use in its war of aggression against Ukraine,” the United States said.

In its measure today, the United States also sanctioned several members of the leadership of this company identified as Kazem Mirzai Kondori, Hossein Bakshayesh and Hojat Abdulahi Fard.

Likewise, the United States sanctioned a network of Iranian logistics companies and other countries from which Modafl and ‘Sahara Thunder’ would have been used for the international trade of drones to Russia, China or Venezuela.

Among them several companies from India, the United Arab Emirates and Iran that operate ships with the flag of the Cook Islands and also from Palau.

As a result of the sanctions, the properties and assets that those people or companies have in U.S. territory are blocked, and Americans are prohibited from having transactions with them.

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