The sample will help scientists get a snapshot of what materials were present when our Solar System formed.
Researchers believe asteroids like Bennu haven’t changed much since the birth of our cosmic neighborhood. They plan to study the recovered rocks and use the mission to inform future exploration.
OSIRIS-REx grabbed more rocks and materials than expected — so much, that it jammed the spacecraft’s sample collector open and some of it went spewing out into space. NASA opted not to measure the sample and instead quickly stowed the rocks to keep them safe.with the sample in 2021, and has been en route to Earth ever since. On Sunday morning, OSIRIS-REx will come within 63,000 miles of Earth, which is when the last leg of the journey begins — and not one entirely without risks.
The container will come into the atmosphere at about 27,000 miles per hour and heat up to around 5,000 degrees Fahrenheit. It has a heat shield, a critical piece of hardware meant to prevent the sample from burning up — which would end the mission.As it descends, the capsule will release a drogue parachute to keep it steady, followed by another parachute to slow it down. If all goes to plan, the capsule will gently touch down in Utah at 10 to 11 miles per hour.
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