Wednesday, May 15, 2024

NASA’s first asteroid samples land on Earth after release from spacecraft



NASA’s first asteroid samples fetched from deep house parachuted into the Utah desolate tract Sunday to cap a seven-year adventure.

In a flyby of Earth, the Osiris-Rex spacecraft launched the pattern pill from 63,000 miles (100,000 kilometers) out. The small pill landed 4 hours later on a faraway expanse of army land, because the mothership activate after some other asteroid.

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“We have touchdown!” Mission Recovery Operations introduced, in an instant repeating the news for the reason that touchdown befell 3 mins early. Officials later mentioned the orange striped parachute opened 4 instances upper than expected — round 20,000 toes (6,100 meters) — basing it on the deceleration fee.

To everybody’s aid, the pill was once intact and now not breached, retaining its 4.5 billion-year-old samples freed from contamination. Within two hours of landing, the pill was once inside of a brief blank room on the Defense Department’s Utah Test and Training Range, hoisted there via helicopter.

The sealed pattern canister might be flown on Monday to NASA’s Johnson Space Center in Houston, the place it’ll be opened in a brand new, specifically designed lab. The development already homes the loads of kilos (kilograms) of moon rocks gathered by the Apollo astronauts.

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

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

Scientists estimate the pill holds a minimum of a cup of rubble from the carbon-rich asteroid known as Bennu, but won’t know for sure until the container is opened in a day or two. Some spilled and floated away when the spacecraft scooped up too much material, which jammed the container’s lid during collection three years ago.

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

The pebbles and dust delivered Sunday constitute the largest haul from past the moon. Preserved development blocks from the break of day of our sun machine, the samples will assist scientists higher know how Earth and existence shaped, offering “an extraordinary glimpse” of 4.5 billion years ago, said NASA Administrator Bill Nelson.

Osiris-Rex, the mothership, rocketed away on the $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 4 billion miles (6.2 billion kilometers).

At a news conference several hours later, 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 mentioned. “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 once now not concerned within the undertaking, mentioned he expects “great things” from NASA’s largest sample return since the Apollo moon landings more than a half-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 added from Nottingham Trent University.

One Osiris-Rex team member was stuck in England, rehearsing for a concert tour. “My heart’s there with you as this precious sample is recovered,” Queen’s lead guitarist Brian May, who is additionally an astrophysicist, mentioned in a prerecorded message. “Happy Sample Return Day.”

Engineers estimate the canister holds 250 grams (8.82 ounces) of material from Bennu, plus or minus 100 grams (3.53 ounces). Even at the low end, it will easily surpass the minimum requirement of the mission, Lauretta said.

It will take a few weeks to get a precise measurement, said NASA’s lead curator Nicole Lunning.

NASA plans a public show-and-tell in October.

Currently orbiting the sun 50 million miles (81 million kilometers) from Earth, Bennu is about one-third of a mile (one-half of a kilometer) across, roughly the size of the Empire State Building but shaped like a spinning top. It’s believed to be the broken fragment of a much larger asteroid.

During a two-year survey, Osiris-Rex found Bennu to be a chunky rubble pile full of boulders and craters. The surface was so loose that the spacecraft’s vacuum arm sank a foot or two (0.5 meters) into the asteroid, sucking up more material than anticipated.

These close-up observations may come in handy late next century. Bennu is expected to come dangerously close to Earth in 2182 — possibly close enough to hit. The data gleaned by Osiris-Rex will help with any asteroid-deflection effort, according to Lauretta.

Osiris-Rex is already chasing after the asteroid Apophis, and will reach it in 2029.

This was NASA’s third sample return from a deep-space robotic mission. The Genesis spacecraft dropped off bits of solar wind in 2004, but the samples were compromised when the parachute failed and the capsule slammed into the ground. The Stardust spacecraft successfully delivered comet dust in 2006.

NASA’s plans to return samples from Mars are on hold after an independent review board criticized the cost and complexity. The Martian rover Perseverance has spent the past two years collecting core samples for eventual transport to Earth.

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The Associated Press Health and Science Department receives enhance from the Howard Hughes Medical Institute’s Science and Educational Media Group. The AP is just liable for all content material.

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