Southwest
Scientists say X-rays from nuclear explosion may deflect asteroids from Earth
Scientists in Albuquerque, New Mexico, say potentially dangerous asteroids could possibly be deflected by exploding a nuclear warhead more than a mile from its surface and showering it with X-rays to send it in a different direction.
Previous methods, as seen in blockbuster movies like “Armageddon” and “Deep Impact,” involved blowing up a nuclear warhead on an asteroid or comet and shattering it into multiple pieces.
But scientists now say the method would change the space object from a lethal bullet headed toward Earth into a shotgun blast of multiple fragments.
Last year, the National Academy of Sciences released a report calling planetary defense a national priority, and according to an ongoing NASA sky survey, the threat is credible.
STADIUM-SIZED ASTEROID DEEMED ‘POTENTIALLY HAZARDOUS’ BY NASA, IS EXPECTED TO MOVE ‘RELATIVELY CLOSE’ TO EARTH
An artist’s impression of a large asteroid impacting at Chicxulub on the Mexican coastline, which caused a mass extinction of dinosaurs 66 million years ago. (Mark Garlick/Reuters)
The sky survey found there are about 25,000 objects big enough to cause varying degrees of destruction to Earth, and only about a third of them have been detected and tracked, according to a press release from the Sandia National Laboratories in Albuquerque.
Many of the objects move invisibly in the sun’s glare. In 2013, a relatively small object created chaos in Russia while a larger asteroid is credited with ending the age of dinosaurs.
“To most people, the danger from asteroids seems remote,” Nathan Moore, a physicist at Sandia National Laboratories said. “But our planet is hit by BB-sized asteroids every day. We call them shooting stars. We don’t want to wait for a large asteroid to show up and then scramble for the right method to deflect it.”
Moore’s team conducted several experiments with Sandia’s Z machine, the most powerful pulsed-power machine on Earth, to monitor the deflection of synthetic asteroids hit by Z’s sudden shocks.
FLASHBACK: STUDY SAYS ASTEROID THAT KILLED THE DINOSAURS ALSO CAUSED A GLOBAL TSUNAMI
2024 ON will be 621,000 miles from Earth on Tuesday night, NASA says. (NASA)
While the machine is on Earth, all experiments are affected by gravity, though Moore’s team was able to beat the inevitable force temporarily to create a better simulation of asteroids floating freely in space.
Moore’s experiments used a technique called X-ray scissors, which removed the skewing effect of friction and gravity for a few microseconds.
The X-ray scissors allowed the model to create the effect of redirecting a free-floating asteroid when hit by a series of nuclear-intensity explosions.
Although the experiments were done in a much smaller environment than space, they could be scaled to predict the effects of nuclear explosions on an actual asteroid.
DINOSAUR-KILLING ASTEROID LIKELY CAME FROM BEYOND JUPITER, STUDY FINDS
An illustration of an asteroid. The asteroid roughly the size of Rome’s Colosseum — between 300 to 650 feet (100 to 200 meters) in length — was detected by an international team of European astronomers using NASA’s James Webb Space Telescope. (N. Bartmann (ESA/Webb), ESO/M. Kornmesser and S. Brunier, N. Risinger (skysurvey.org))
“I started working through the logic of how I could deflect a miniature asteroid in a laboratory just like in outer space,” Moore said. “A key fact was that asteroids in outer space aren’t attached to anything. But in a lab, everything is pulled down by Earth’s gravity, so everything is held in place by its gravitational attachment to something else. This wouldn’t let our mock asteroid move with the freedom of one in outer space. And mechanical attachments would create friction that would perturb the mock asteroid’s motion.”
And that’s where the X-ray scissors came in. The method allowed scientists to release a mock asteroid the size of a tenth of a gram and made of silica, into the free space vacuum.
The material was suspended by foil eight times thinner than human hair, which vaporized instantly when the Z machine fired.
The silica was then left free-floating as the X-ray burst hit it.
NASA COLLISION WITH ASTEROID DIMORPHOS CHANGED BOTH ITS TRAJECTORY AND SHAPE
The DART spacecraft, short for Double Asteroid Redirection Test, atop a SpaceX Falcon 9 rocket is seen Tuesday, Nov. 23, 2021, from Simi Valley, Calif. after launching from Vandenberg Space Force Base. (AP Photo/Mark J. Terrill)
“It was a novel idea,” Moore said. “A mock asteroid is suspended in space. For a one-nanometer fall, we can ignore Earth’s gravity for 20 millionths of a second as Z produces a burst of X-rays that sweeps over the mock-asteroid surface 12.5 millimeters across, about the width of a finger.
“The trick is to use just enough force to redirect the flying rock without splitting it into several equally deadly subsections advancing toward Earth,” Moore added, referring to a real intercept scenario like the recent NASA DART experiment.
The news comes just days after NASA monitored a “potentially hazardous” asteroid moving past Earth last Tuesday.
NASA told Fox News Digital that the rocky object, which has been named 2024 ON, is 350 meters long by 180 meters wide, which roughly equals 1,150 feet by 590 feet — larger than previous estimates.
NASA has deemed the asteroid “stadium-sized” and reported it was 621,000 miles away from Earth, which is considered relatively close. Davide Farnocchia, a navigation engineer at NASA’s Jet Propulsion Laboratory, told Fox News Digital that an asteroid of this size coming this close to Earth only happens every five to ten years.
Although the asteroid was close enough to Earth to be deemed a “potentially hazardous object,” Farnocchia said there is no chance the asteroid would hit Earth. The asteroid would need to be within a couple of hundred miles to be a concern.
The asteroid was one of five that would pass by Earth last week, but the other rocky objects were not expected to come nearly as close as 2024 ON. The four asteroids were between 1.1 to 3.9 million miles away from Earth, and three of the asteroids measured roughly 51 feet in diameter, which is the size of a house.
Fox News Digital’s Andrea Vacchiano contributed to this report.
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Los Angeles, Ca
‘Moana’ is a triumph for Pacific Islander representation on the big screen
“Moana” has been called a box office flop, an unnecessary money grab by Walt Disney Studios, but what it hasn’t been called yet is a triumphant win for cultural representation on the big screen.
The live-action adaptation of the beloved 2016 animated movie “Moana” effectively bombed at the box office, making much less money than industry insiders anticipated.
While it failed to live up to the expectations of the box office and critics alike, the film did exceed the expectations of moviegoers of Pacific Island descent, and they’ve taken to social media to express just how much the movie means to them.
Moana is more than the main character’s name. It means ocean across several Pacific Islander languages.
One user explained how this kind of representation is more than entertainment.
“When I watched ‘Moana,’ I couldn’t hold back my tears. I heard the language of my parents, the language of my people. I saw our traditional Samoan clothing, our weaving, our siva, our culture, our values. I saw my people. I saw me.”
Another user said seeing Pacific Islanders on the silver screen influenced her own artistry.
“Representation matters. As a sometimes-Female-Polynesian-filmmaker (depending on the day and my imposter syndrome), seeing our stories on a screen this big makes me dream a little bigger too.”
Even the film’s star, Dwayne “The Rock” Johnson, spoke to the film’s representation in a recent Instagram post.
“I feel that our movie ‘Moana’ will always serve a bigger purpose than just a film – it’s representation. Our Polynesian culture showcased to the world, and embraced by the world – with love, humility, warrior spirit and MANA.”
That representation was taken as a serious responsibility by the actors and creative team behind the scenes of Disney’s latest live-action remake.
“We got chosen for a reason,” Rena Owen, who plays Gramma Tala in the film, explains.
“Every single one of us, whether that’s an actor, whether that’s a creative, whether that’s a crew person. We’re raised that way, we’re raised in villages and we’re raised… on our earth, with our sky father and our moana, that’s what we all have in common. So, we just had to be ourselves.”
Disney once again leaned on members of its Oceanic Cultural Trust, a group formed over a decade ago to ensure cultural accuracy for the first “Moana” movie.
The trust’s lead consultant, Dr. Grant Muāgututiʻa, spoke about the work that went into bringing Moana to life on screen.
“We have a big responsibility to our folks who are gonna be watching the film. We’re elated that the film crew and the filmmakers were really receptive to all of the input that we had and we’re really happy with the way it turned out.”
Dr. Muāgututiʻa is a linguist by trade, serving as Assistant Professor of Linguistics at California State University San Marcos. He told KTLA he was thrilled that people of Samoan descent can hear their language spoken in a major Disney film.
“The mountaintop scene where you can hear both Jon Tui, who plays Chief Tui, and Catherine Laga’aia, who plays Moana speaking Samoan. And then the Siva Tau scene, where Seiuli Dwayne Johnson also speaks Samoan. I think those are special moments that are new, especially for our people to see. They’re able to experience real islanders that are proud of their culture.”
“Moana” Choreographer and Cultural Trust member Tiana Nonosina Liufau agreed.
“Seeing an all-Pasifika cast, and hearing them, there’s a lot of Mana in that, hearing these words come out of their mouth, something audiences can trace back to their genealogy, that’s priceless. All worth it.”
Los Angeles, Ca
LADWP begins long-term repairs after West Hollywood water main rupture
Crews worked overnight on what is expected to be a long-term effort to clean up and repair a broken water main that caused extensive damage in West Hollywood on Thursday.
Yellow tape remained in place Friday morning, blocking streets around Sunset Boulevard and Holloway Drive as crews continued pumping water out of the century-old trunk line.
Asphalt and soil were also being removed so crews could get a better look at the damaged 36-inch trunk line, a major feeder pipe serving the area.
“First and foremost is our crews’ safety,” a Los Angeles Department of Water and Power spokesperson said Thursday. “When we excavate, we are going to have to make sure the area is safe before we send crews in to proceed and start the actual repairs on the pipe.”
The water main ruptured around 3 a.m. Thursday, sending thousands of gallons of water rushing through West Hollywood streets, flooding dozens of garages and pushing parked cars into one another.
A Metro bus yard was also flooded, leaving several buses partially submerged.
The force of the water washed away dirt and gravel supporting the roadway, creating a massive sinkhole on Sunset Boulevard and a smaller one near Palm Avenue, where two people fell in.
“I’m astounded by the massive sinkhole that has just opened up before our eyes,” KTLA’s Annie Rose Ramos reported Thursday from Palm Avenue.
The two men appeared to be uninjured.
As for the larger trunk line that burst beneath Sunset Boulevard, KTLA’s Carlos Herrera reported it was scheduled for replacement in 2031.
LADWP officials now hope to establish a repair timeline after getting a closer look at the damage Friday. For now, the intersection is expected to remain closed for anywhere from several days to several weeks.
The cause of the rupture remains under investigation.
Los Angeles, Ca
Arrest made in deadly shooting at 4th of July gathering in Compton; search for 2nd suspect continues
Los Angeles County Sheriff Robert Luna gave an update Thursday on several shootings over the Fourth of July weekend that left three people dead and several others injured.
Police arrested Antoine Jones, a 50-year-old man from the Los Angeles area, who they believe is responsible for the murder of a 19-year-old woman and the attempted murder of two additional surviving female victims who were attending a large community block party in Compton.
On July 4 at approximately 11:40 p.m., deputies from the Compton station responded to an apartment complex on the 700 block of West Laurel Street following reports of multiple people being shot.
Meah Bordenave-Jenkins, a 19-year-old nursing student at the University of Nevada, Las Vegas, was killed when gunfire broke out at the party.
Deputies located Bordenave-Jenkins and the two other women suffering from gunshot wounds outside of the apartment complex.
“While today’s announcement represents an important step towards justice for Meah and her family, our work is very far from being over,” said LASD Sheriff Robert Luna.
The LASD is also seeking the public’s help in identifying those responsible for the murder of Eric Washington, 37, a beloved community activist and former government staffer, and the attempted murder of another surviving man injured that same night at the same party.
Washington was reportedly killed while trying to deescalate a conflict at the party, his family said. Deputies found victim Washington suffering from a gunshot wound inside the complex.
Investigators later learned that another man had also been shot at some point during the incident.
Bordenave-Jenkins and Washington both died from their injuries. The remaining victims, two women and a man, sustained non-life-threatening injuries and have been released from the hospital. They have not been identified by police.
Detectives determined the two shootings happened moments apart at the party but appear to be separate and unrelated.
Detectives identified Jones as the suspect responsible for Bordenave-Jenkins’ death and the attempted murder of the two surviving women. Authorities located Jones on July 14 in Los Angeles and took him into custody.
The LASD is still searching for the suspect or suspects responsible for the murder of Washington and the attempted murder of the surviving male victim.
“Although today’s arrest is significant, this investigation remains extremely active,” Luna said.
“There were hundreds of people at this gathering,” Luna said. “Somebody knows, somebody saw or somebody heard what happened.”
The LASD also announced they’re searching for a suspect in a separate shooting at a different Fourth of July gathering that occurred in the early morning of July 5.
At approximately 12:10 a.m., Compton deputies responded to the 2100 block of North Grandee Avenue, where they located a 30-year-old victim, Thaddeus Clark, and a second victim suffering from gunshot wounds at the gathering.
Clark, a father of three, did not survive his injuries, Luna said.
The LASD is urging anyone with information about Clark’s murder and the attempted murder of the surviving victim to contact the LASD Homicide Bureau.
Although these shooting incidents occurred at gatherings less than an hour apart, investigators found no evidence that the two were connected, Luna said.
Luna also announced three suspects have been arrested in connection with a shooting in East L.A. on July 5. It happened as crowds crossed the intersection near Whittier Boulevard and Leonard Avenue during a World Cup match.
Four people were hit by gunfire, including two men, one woman and a boy. None of the injuries were life-threatening.
The sheriff said the alleged shooter, a 15-year-old known gang member, was arrested. Two female suspects, ages 21 and 38, have been arrested in the Lancaster and Palmdale areas for their alleged roles in luring the primary victim to the location and assisting the shooting suspect in evading arrest.
They’re all facing four counts of attempted murder.
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