Day: September 26, 2022

Kenya’s ‘Marathon King’ Inspires Runners After Beating World Record

Kenyan marathon runner Eliud Kipchoge is spurring young athletes to follow in his footsteps after breaking his own world record Sunday in Berlin. 

Cheers erupted from the crowd Sunday at Nairobi’s Karura Forest as they watched Kipchoge race on TV. The watch party followed an amateur marathon organized by the Friends of Karura Forest to celebrate their 25th anniversary.  

Karanja Njoroge, a past chairman of the conservation group who serves on its board, called Kipchoge’s win “absolutely magnificent.”  

“Everybody went wild,” Njoroge said of the crowd at the watch party. “Seeing the guy was way ahead. Everybody felt so elated by the efforts of our king of athletics, Eliud Kipchoge.” 

Kipchoge’s new record, 30 seconds faster than his previous world record set in Berlin in 2018, is now two hours, one minute and nine seconds. Njoroge called it an inspiration. 

“I think it encourages people. Gives people hope. And even those who would never compete begin to believe, because this guy is 37 years old and he’s breaking world records,” Njoroge said. 

Barnabas Korir, an executive member of Athletics Kenya, the governing body for track and field sports, agreed.    

“He’s inspired the youth, but not only the youth but particularly all the athletes from Kenya,” Korir said. “You know Kipchoge is one of the few athletes who is completely determined. He’s also very focused.” 

Korir, who is also chairman of youth development at Athletics Kenya, said camps have been set up nationwide to encourage sports.   

“We got the support from the government to do that and in the last 3 years, Eliud Kipchoge talk to the athletes when they were in the camps,” Korir said. “So, this is an opportunity for us now to give our athletes a symbol that they can do well if they remain focused, if they work hard.” 

Kipchoge has won 15 out of his 17 career marathons, including two Olympic gold medals.  

Daniel Schearf contributed to this report.

 

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NASA’s Asteroid-Deflecting DART Spacecraft Nears Planned Impact With Target 

Ten months after launch, NASA’s asteroid-deflecting DART spacecraft neared a planned impact with its target on Monday in a test of the world’s first planetary defense system, designed to prevent a doomsday collision with Earth.

The cube-shaped “impactor” vehicle, roughly the size of a vending machine with two rectangular solar arrays, was on course to fly into the asteroid Dimorphos, about as large as a football stadium, and self-destruct around 7 p.m. EDT (2300 GMT) some 11 million kilometers from Earth.

The mission’s finale will test the ability of a spacecraft to alter an asteroid’s trajectory with sheer kinetic force, plowing into the object at high speed to nudge it astray just enough to keep our planet out of harm’s way.

It marks the world’s first attempt to change the motion of an asteroid, or any celestial body.

DART, launched by a SpaceX rocket in November 2021, has made most of its voyage under the guidance of NASA’s flight directors, with control to be handed over to an autonomous on-board navigation system in the final hours of the journey.

Monday evening’s planned impact is to be monitored in real time from the mission operations center at the Johns Hopkins University Applied Physics Laboratory (APL) in Laurel, Maryland.

DART’s celestial target is an asteroid “moonlet” about 170 meters in diameter that orbits a parent asteroid five times larger called Didymos as part of a binary pair with the same name, the Greek word for twin.

Neither object presents any actual threat to Earth, and NASA scientists said their DART test cannot create a new existential hazard by mistake.

Dimorphos and Didymos are both tiny compared with the cataclysmic Chicxulub asteroid that struck Earth some 66 million years ago, wiping out about three-quarters of the world’s plant and animal species including the dinosaurs.

Smaller asteroids are far more common and pose a greater theoretical concern in the near term, making the Didymos pair suitable test subjects for their size, according to NASA scientists and planetary defense experts.

Also, their relative proximity to Earth and dual-asteroid configuration make them ideal for the first proof-of-concept mission of DART, short for Double Asteroid Redirection Test.

Robotic suicide mission

The mission represents a rare instance in which a NASA spacecraft must ultimately crash to succeed.

The plan is for DART to fly directly into Dimorphos at 24,000 kilometers per hour, bumping it hard enough to shift its orbital track closer to its larger companion asteroid.

Cameras on the impactor and on a briefcase-sized mini-spacecraft released from DART days in advance are designed to record the collision and send images back to Earth.

DART’s own camera is expected to return pictures at the rate of one image per second during its final approach, with those images streaming live on NASA TV starting an hour before impact, according to APL.

The DART team said it expects to shorten the orbital track of Dimorphos by 10 minutes but would consider at least 73 seconds a success, proving the exercise as a viable technique to deflect an asteroid on a collision course with Earth — if one were ever discovered. A small nudge to an asteroid millions of miles away could be sufficient to safely reroute it away from the planet.

The test’s outcome will not be known until a new round of ground-based telescope observations of the two asteroids in October. Earlier calculations of the starting location and orbital period of Dimorphos were confirmed during a six-day observation period in July.

DART is the latest of several NASA missions in recent years to explore and interact with asteroids, primordial rocky remnants from the solar system’s formation more than 4.5 billion years ago.

Last year, NASA launched a probe on a voyage to the Trojan asteroid clusters orbiting near Jupiter, while the grab-and-go spacecraft OSIRIS-REx is on its way back to Earth with a sample collected in October 2020 from the asteroid Bennu.

The Dimorphos moonlet is one of the smallest astronomical objects to receive a permanent name and is one of 27,500 known near-Earth asteroids of all sizes tracked by NASA. Although none are known to pose a foreseeable hazard to humankind, NASA estimates that many more asteroids remain undetected in the near-Earth vicinity.

NASA has put the entire cost of the DART project at $330 million, well below that of many of the space agency’s most ambitious science missions.

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Musk Faces Deposition With Twitter Ahead of October Trial

Tesla CEO Elon Musk is scheduled to spend the next few days with lawyers for Twitter, answering questions ahead of an October trial that will determine whether he must carry through with his $44 billion agreement to acquire the social platform after attempting to back out of the deal.

The deposition, planned for Monday, Tuesday and a possible extension on Wednesday, will not be public. As of Sunday evening, it was not clear whether Musk will appear in person or by video. The trial is set to begin October 17 in Delaware Chancery Court, where it’s scheduled to last just five days.

Musk, the world’s richest man, agreed in April to buy Twitter and take it private, offering $54.20 a share and vowing to loosen the company’s policing of content and to root out fake accounts. Twitter shares closed Friday at $41.58.

Musk indicated in July that he wanted to back away from the deal, prompting Twitter to file a lawsuit to force him to carry through with the acquisition.

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