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OSIRIS-REx pattern return capsule safely lands in Utah – Spaceflight Now

September 24, 2023
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OSIRIS-REx pattern return capsule safely lands in Utah – Spaceflight Now
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From left to proper, NASA Pattern Return Capsule Science Lead Scott Sandford, NASA Astromaterials Curator Francis McCubbin, and College of Arizona OSIRIS-REx Principal Investigator Dante Lauretta, examined the OSIRIS-REx pattern return capsule after it landed on the Division of Protection’s Utah Check and Coaching Vary on Sept. 24, 2023. Picture: NASA/Keegan Barber.

A saucer-shaped capsule carrying asteroid fragments that will maintain clues concerning the beginning of the photo voltaic system slammed into Earth’s ambiance Sunday and descended to an on-target parachute-assisted landing in Utah within the last chapter of a dramatic seven-year, four-billion-mile voyage.

Launched from the OSIRIS-REx mothership 4 hours earlier, the 110-pound 31-inch-wide pattern return capsule, loaded with a half-pound of rocks and soil collected in 2020 from an asteroid generally known as Bennu, hit the highest of the discernible ambiance, 82 miles up, at a blistering 27,000 mph 10:42 a.m. EDT.

Over the subsequent two minutes, quickly decelerating in a hellish blaze of atmospheric friction, the capsule’s warmth protect endured re-entry temperatures of greater than 5,000 levels and a braking drive 32 instances the drive of gravity because it streaked towards touchdown on the Utah Check and Coaching Vary west of Salt Lake Metropolis.

With scientists and engineers holding their collective breath — the same capsule crash landed in Utah in 2004 when its parachutes didn’t open — the OSIRIS-REx pattern return capsule survived its trial by hearth and presumably deployed a stabilizing drogue parachute at an altitude of 20 miles.

The pattern return capsule from NASA’s OSIRIS-REx mission pictured on the desert ground, shortly after touching down. Its purple and white striped parachute rests close to by. Picture: NASA/Keegan Barber.

The capsule’s 24-foot-wide principal capsule was anticipated to unfurl and inflate at an altitude of 5,000 toes, however NASA mentioned it truly deployed at 20,000 toes. Which will have contributed to a barely earlier-than-expected landing, however in any case, the principle chute appeared to decrease the pattern return capsule to an anticipated 11-mph touchdown at 10:52 a.m. EDT, the ultimate step in a nail-biting descent.

Restoration crews from prime contractor Lockheed Martin Area and the Utah Check and Coaching Vary had been on the scene inside minutes to doc the situation of the capsule, on the lookout for any indicators of a breach that would trigger contamination of the pristine samples inside.

Additionally available: College of Arizona Principal Investigator Dante Lauretta, a part of a workforce assigned to gather close by soil samples to totally doc the chemical make-up of the touchdown zone. Simply in case.

The restoration plan known as for the workforce to haul the capsule to a brief air-filtered “clear room” to start disassembly and to make preparations to ship the {hardware} and the samples to an environmentally “clear” laboratory on the Johnson Area Middle in Houston.

Lauretta mentioned the collected samples — the biggest U.S. assortment of extraterrestrial materials for the reason that Apollo moon program — are consultant of the uncooked materials that shaped the solar and its retinue of planets 4.5 billion years in the past.

“We’re going again to the daybreak of the photo voltaic system, we’re on the lookout for clues as to why Earth is a liveable world, this uncommon jewel in outer house that has oceans, it has a protecting ambiance,” he mentioned. “We predict all of these supplies had been introduced (to Earth) by these carbon-rich asteroids very early in our planetary system formation.

“And naturally, the most important query, the one which drives my scientific investigations, is the origin of life. What’s life? How did it originate? And why was the Earth the place that it occurred? … We imagine that we’re bringing again that form of materials, possibly representatives of the seeds of life that these asteroids delivered firstly of (Earth’s historical past).”

Two Japanese spacecraft returned small samples from asteroids in 2010 and 2020, however OSIRIS-REx — a convoluted acronym that stands for Origins, Spectral Interpretation, Useful resource Identification and Safety Regolith Explorer — is the primary such mission mounted by NASA.

After preliminary evaluation in Houston, NASA will share samples of Bennu with researchers all over the world.

“It is a present to the world,” Lauretta mentioned. “We have now laboratories on 4 continents, 16 timezones, a whole bunch of researchers, over 60 laboratories which were on the brink of get this materials, and we’re prepared to start the ultimate science marketing campaign of the OSIRIS REx prime mission.”

Geared up with three cameras, two spectrometers, a laser altimeter and an X-ray imaging system developed by faculty college students, the OSIRIS-REx spacecraft and pattern return capsule had been launched atop a United Launch Alliance Atlas 5 rocket from Cape Canaveral on Sept. 8, 2016.

To achieve Bennu, which orbits in a airplane tilted six levels from Earth’s, OSIRIS-REx looped across the solar after which made a velocity-boosting gravity-assist flyby of Earth on Sept. 22, 2017. The spacecraft lastly slipped into orbit round Bennu in late 2018.

Captured on Oct. 20, 2020, in the course of the OSIRIS-REx mission’s Contact-And-Go (TAG) pattern assortment occasion, these photos present the second earlier than and after the NASA spacecraft touched down on asteroid Bennu’s floor to gather a pattern of the floor materials. Photos: NASA/Goddard/College of Arizona.

Scientists had been surprised at what they discovered. As a substitute of a extra typical physique, with fine-grained soils and rocks atop a kind of stable inside, Bennu, about as extensive because the Empire State Constructing is tall, turned out to be a loosely compacted rubble pile that behaved extra like a fluid than a stable.

After intensive mapping to establish a protected sample-collection level, OSIRIS-REx slowly descended towards the floor on Oct. 20, 2020, its pie pan-shaped “Contact-And-Go Pattern Acquisition Mechanism,” or TAGSAM, poised on the finish of an 11-foot-long robotic arm.

On contact, the probe fired a jet of nitrogen gasoline across the inside of the 12-inch-wide TAGSAM, stirring up the soil and small rocks beneath and blowing among the materials into assortment filters earlier than the spacecraft reversed course and backed away.

“It behaved very very like a fluid, there was no resistance to the downward movement of the spacecraft,” Lauretta mentioned in an interview. “We sank in about 50 centimeters (20 inches) and if we hadn’t fired the back-away thrusters, I feel we might have simply gone proper into the asteroid and disappeared.”

After backing away from Bennu, the TAGSAM mechanism and its treasured samples had been stowed contained in the OSIRIS-REx return capsule for the lengthy flight again to Earth and Sunday’s dramatic re-entry.

After course corrections to line up on the Utah touchdown web site, the OSIRIS-REx mothership launched the pattern return capsule at 6:42 a.m. EDT. With the capsule safely on its approach, the OSIRIS-REx spacecraft fired its thrusters 20 minutes later, making certain it will safely miss Earth by about 484 miles.

The “divert” maneuver put the craft on target for an in depth encounter with the asteroid Apophis in 2029.

Roughly 1,200 toes throughout, Apophis will come inside a scant 20,000 miles of Earth in 2029, a really close to miss in astronomical phrases. The OSIRIS-REx spacecraft, now generally known as the OSIRIS-Apophis Explorer, will brake into orbit round Apophis shortly after the asteroid’s Earth flyby, kicking off prolonged observations.



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