Tue, Sep 26, 2023 page5

• NASA asteroid samples land on Earth

  SCIENTIFIC TREASURE: Preserved building blocks from the dawn of our solar system, the samples would help scientists better understand how the Earth and life formed

  • AP
  • • 
    • 
    • 

  NASA’s first asteroid samples fetched from deep space on Sunday parachuted into the Utah desert to cap a seven-year journey.

  In a flyby of Earth, the Osiris-Rex spacecraft released the sample capsule from 100,000km out. The small capsule landed four hours later on a remote expanse of military land, as the ship set off after another asteroid.

  “We have touchdown,” mission recovery operations announced, immediately repeating the news since the landing occurred three minutes early. Officials later said the orange striped parachute opened four times higher than anticipated — at about 6,100m — basing it on the deceleration rate.

  

  The sample return capsule from NASA’s Osiris-Rex mission is pictured shortly after touching down in the desert in Utah on Sunday.

  Photo: AFP / NASA / Keegan Barber

  To everyone’s relief, the capsule was intact and not breached, keeping its 4.5 billion-year-old samples free of contamination. Within two hours of touchdown, the capsule was inside a temporary clean room at the US Department of Defense’s Utah Test and Training Range, hoisted there by helicopter.

  The sealed sample canister was yesterday flown to NASA’s Johnson Space Center in Houston, Texas, where it was to be opened in a new, specially designed laboratory. The building already houses the hundreds of kilograms of moon rocks gathered by the Apollo astronauts.

  “We can’t wait to crack into it. For me, the real science is just beginning,” mission lead scientist Dante Lauretta of the University of Arizona said. He was to accompany the samples all the way to Texas.

  “Those are going to be a treasure for scientific analysis for years and years and years to come,” said Lori Glaze, NASA’s planetary science division director.

  Scientists estimate the capsule holds at least a cup of rubble from the carbon-rich asteroid known as Bennu, but would not know for sure until the container is opened. Some spilled and floated away when the spacecraft scooped up too much material, which jammed the container’s lid during the collection three years ago.

  Japan, the only other nation to bring back samples, gathered about a teaspoon during a pair of asteroid missions.

  The pebbles and dust delivered on Sunday represent the biggest haul from beyond the moon. Preserved building blocks from the dawn of our solar system, the samples would help scientists better understand how Earth and life formed, providing “an extraordinary glimpse” of 4.5 billion years ago, NASA Administrator Bill Nelson said.

  Osiris-Rex, the ship, rocketed away on the US$1 billion mission in 2016. It reached Bennu two years later and, using a long stick vacuum, grabbed rubble from the small roundish space rock in 2020. By the time it returned, the spacecraft had logged 6.2 billion kilometers.

  At a news conference, Lauretta said he broke into tears of joy upon hearing that the capsule’s main parachute had opened.

  “I knew we had made it home,” he said, so overwhelmed with emotion when he arrived at the scene that he wanted to hug the capsule, sooty, but undamaged, and not even bent.

  Flight controllers for spacecraft builder Lockheed Martin stood and applauded the touchdown from their base in Colorado. NASA camera views showed the charred capsule upside down on the sand with its parachute disconnected and strewn nearby, as the recovery team moved in via helicopters.

  “Boy, did we stick that landing,” Lauretta said. “It didn’t move, it didn’t roll, it didn’t bounce. It just made a tiny little divot in the Utah soil.”

  British astronomer Daniel Brown, who was not involved in the mission, said he expects “great things” from NASA’s largest sample return since the Apollo moon landings more than half a century ago.

  With these asteroid samples, “we are edging closer to understanding its early chemical composition, the formation of water and the molecules life is based on,” he said from Nottingham Trent University.
• Most Popular

  • 1

    TSMC and Nvidia team up on silicon photonics, CEO Jensen Huang says

  • 2

    Master sergeant killed after being sucked into engine

  • 3

    TikTok could be affecting views of young Taiwanese

  • 4

    Dozens injured after quakes damage buildings

  • 5

    Tourist faces a fine after being struck by a train