NASA's OSIRIS-REx spacecraft and its unprecedented mission to asteroid Bennu

Our story begins with NASA's OSIRIS-REx spacecraft and its unprecedented mission to asteroid Bennu. This asteroid, roughly the size of the Empire State Building, presented a starkly different reality than what scientists had anticipated. Early predictions suggested a surface covered in small pebbles, but the reality was a landscape of boulders, challenging previous assumptions about such celestial bodies.