The space agency has released the photographs for the first time.
But the “flying saucer” is not an alien spaceship and is infact the remnants of the robot spaceship Genesis.
The ship was designed to study the Sun and was launched nearly two decades ago in 2001.
NASA wrote on its website: “The year was 2004, and no space aliens were involved.
“The saucer, pictured here, was the Genesis sample return capsule, part of a human-made robot Genesis spaceship launched in 2001 by NASA itself to study the Sun.”
NASA added that Genesis was “tracked by radar and chased by helicopters”.
The spacecraft crashed after its parachute failed to open and took an unexpected “hard landing”.
It hit the ground at 186mph, but the ship was still able to capture solar wind particles which would have been deflected by Earth’s magnetic field and be analysed.
NASA added: “Despite the crash landing, many return samples remained in good enough condition to analyse.
“So far, Genesis-related discoveries include new details about the composition of the Sun and how the abundance of some types of elements differ across the Solar System.
“These results have provided intriguing clues into details of how the Sun and planets formed billions of years ago.”
The revelation comes after NASA this week announced plans to send humans to Mars by 2024.
And the space agency thinks its new ultra-small nuclear reactor could power the trip.
The journey would take between six to nine months – depending on the position of Earth and the Red Planet in their orbits.