What advantage does physical sample return from pristine asteroids offer over remote sensing techniques?

Answer

It allows for the detailed, complex molecular identification needed to confirm specific informational building blocks.

While remote spectroscopy identifies basic components, direct physical samples allow scientists to use highly sensitive instrumentation to confirm the presence of specific, complex molecules like uracil, unhindered by the limitations of remote technology.

What advantage does physical sample return from pristine asteroids offer over remote sensing techniques?
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