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NEWS / 2023 / 12 / 15 / NASA'S ASTEROID SAMPLE RETURNS TRIUMPHANTLY TO EARTH

NASA's Asteroid Sample Returns Triumphantly to Earth

23:40 15.12.2023

NASA's Osiris-Rex spacecraft successfully completed its seven-year mission by parachuting its first asteroid samples into the Utah desert on Sunday. The sample capsule was released from a distance of 63,000 miles away from Earth during a flyby and landed four hours later on a remote expanse of military land. Mission Recovery Operations announced the successful touchdown, which occurred three minutes ahead of schedule. The orange striped parachute opened much higher than expected at around 20,000 feet, but the capsule remained intact and free from contamination. It was quickly transported to a temporary clean room at the Defense Department's Utah Test and Training Range via helicopter and will be flown to NASA's Johnson Space Center in Houston on Monday.

The lead scientist of the mission, Dante Lauretta, expressed excitement about the upcoming analysis of the samples, stating that "the real science is just beginning." Lori Glaze, NASA's planetary science division director, emphasized the significance of the samples, calling them a "treasure for scientific analysis for years and years and years to come." The capsule is estimated to hold at least a cup of rubble from the carbon-rich asteroid known as Bennu, but the exact amount will only be confirmed once it is opened in the following days. Some material had spilled and floated away during the collection process three years ago, causing the container's lid to jam.

The samples retrieved from Bennu represent the largest haul of asteroid material beyond the moon. They are expected to provide valuable insights into the formation of Earth and life, offering a glimpse into the conditions 4.5 billion years ago. NASA Administrator Bill Nelson described the preserved building blocks from the early solar system as an "extraordinary glimpse" into our past.

Osiris-Rex, the mothership, embarked on its $1 billion mission in 2016 and reached Bennu in 2018. Using a vacuum arm, it collected rubble from the asteroid's surface in 2020. Throughout its journey, the spacecraft traveled a total distance of 4 billion miles. The successful landing of the sample capsule brought tears of joy to Dante Lauretta, who expressed his overwhelming emotions upon seeing the undamaged and intact capsule.

Astrophysicists and astronomers worldwide anticipate significant discoveries from the asteroid samples. Daniel Brown, a British astronomer, expects the samples to provide a better understanding of the early chemical composition, water formation, and the molecules that form the basis of life. The return of the samples also received a message of support from Queen's lead guitarist Brian May, who is also an astrophysicist.

The canister is estimated to contain 250 grams of material from Bennu, with a possible variation of 100 grams. This exceeds the mission's minimum requirement, and a precise measurement will be obtained in the coming weeks. NASA plans to showcase the samples to the public in October. Bennu, currently located 50 million miles from Earth, is approximately one-third of a mile in diameter and is believed to be a fragment of a larger asteroid. Its loose surface allowed the spacecraft's vacuum arm to gather more material than anticipated.

The close-up observations of Bennu's surface will be particularly valuable in the future as the asteroid is predicted to approach Earth dangerously in 2182, potentially posing a threat. The data collected by Osiris-Rex will aid in developing asteroid-deflection strategies. The spacecraft is now heading towards the asteroid Apophis and is scheduled to reach it in 2029.

This successful mission marks NASA's third sample return from a deep-space robotic mission. The Genesis spacecraft in 2004 and the Stardust spacecraft in 2006 both delivered valuable samples, although the Genesis samples were compromised due to a parachute failure. NASA's plans to retrieve samples from Mars are currently on hold following a review board's critique of the project's cost and complexity.

/ Friday, 15 December 2023 /

themes:  NASA  Cosmos

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20/05/2024    info@iqtech.top
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