Home Animal NASA’s first take a look at a pattern from asteroid Bennu reveals life’s constructing blocks

NASA’s first take a look at a pattern from asteroid Bennu reveals life’s constructing blocks

NASA’s first take a look at a pattern from asteroid Bennu reveals life’s constructing blocks


NASA scientists are simply starting to disclose particulars about roughly 250 grams of mud and rocks introduced again to Earth from the asteroid Bennu. The samples are the results of the primary U.S. mission to return a pattern from an asteroid, and the most important cache of fabric ever collected past the orbit of the moon.

This mission is the start of “a brand new period of exploration, and that is the period of pattern science,” stated Makenzie Lystrup, director of NASA’s Goddard Area Flight Heart in Greenbelt, Md., throughout a dwell streaming occasion on October 11. “That is when pattern science actually begins.”

The mission started seven years in the past when the OSIRIS-REx spacecraft left Earth to rendezvous with Bennu, a near-Earth asteroid that will maintain clues to the formation of the photo voltaic system and the origin of life on Earth. OSIRIS-REx calmly touched down on Bennu in 2020, scooped up a espresso cup–sized pattern and sealed it away for the lengthy journey again house (SN: 10/21/20) .

OSIRIS-REx jettisoned its pattern return capsule again to Earth on September 24 (SN: 9/22/23). The spacecraft continued on its manner, below the brand new identify OSIRIS-APEX, because it headed out on its subsequent mission — going into orbit across the near-Earth asteroid Apophis.

The capsule containing the Bennu samples parachuted all the way down to a desert touchdown web site in Utah, the place it was picked up and helicoptered to NASA’s Johnson Area Flight Heart in Houston. NASA scientists rigorously opened the capsule in a devoted clear room designed to make sure that the pristine asteroid materials wouldn’t be contaminated by any terrestrial materials.

The fabric within the capsule was collected by blowing mud and rocks right into a container with blasts of nitrogen gasoline. The pattern consists primarily of asteroid materials from as deep as 50 centimeters beneath the floor (SN: 12/12/19). Further mud and grit that adhered to the spacecraft touchdown pads when OSIRIS-REx touched down on Bennu will provide a take a look at the composition of the floor of the asteroid. 

The mission returned some bonus materials as properly, within the type of free particles that was inadvertently kicked up into the capsule within the space across the assortment container, previous to the capsule sealing up for the journey house. The science crew has delayed opening the principle pattern canister, as a substitute taking time to gather and analyze the bonus pattern.

A lot of that materials is made up of water-bearing clay minerals. “The explanation that Earth is the liveable world that now we have, with oceans and lakes and rivers and rain,” stated planetary scientist Dante Lauretta of the College of Arizona in Tucson, who leads the OSIRIS-REx mission, “is as a result of these clay minerals, like those we’re seeing from Bennu landed on Earth 4 billion years in the past to 4.5 billion years in the past, making our world liveable.”

Different grains include parts frequent on Earth, together with carbon and iron, Lauretta stated, in addition to platelike sulfur constructions that will have been essential for jump-starting life.

1 / 4 of the Bennu pattern will go to scientists on the OSIRIS-REx mission for evaluation. The remainder might be divvied up amongst scientists across the globe, with a portion put aside for future research.

“These things is an astrobiologist’s dream,” stated Daniel Glavin, a senior scientist for pattern return at Goddard. “I simply can’t wait to get at it. And this materials might be round for generations and generations.” 



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