September 24, 2023- 3RD OF 3
NASA's OSIRIS-REx Mission: Collecting Asteroid Samples for Scientific Insights
In a historic mission, NASA's Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer (OSIRIS-REx) spacecraft successfully collected samples from the near-Earth asteroid Bennu and safely returned them to Earth. This monumental achievement offers a glimpse into the earliest days of our solar system and provides invaluable insights into the potential role of asteroids in the emergence of life on Earth.
A Pristine Relic from the Past:
Bennu, a near-Earth asteroid as tall as the Empire State Building, has captured the attention of scientists due to its remarkable age. Estimated to have formed within the first 10 million years of the solar system's existence, Bennu represents a pristine relic from a chaotic period over 4.5 billion years ago. Studying its chemical and physical properties promises to unlock critical information about the solar system's infancy.
The Quest for Understanding:
Researchers are eager to decipher the role asteroids like Bennu played in the development of life on Earth. The theory suggests that asteroids and comets may have delivered essential elements, such as water and organic molecules, to our planet. By studying Bennu's samples, scientists hope to gain a deeper understanding of these cosmic messengers and their potential contributions to life's emergence.
Potentially Hazardous Object:
Aside from its scientific significance, Bennu is classified as a potentially hazardous object due to its orbit. NASA's Planetary Defense Coordination Office has estimated a 1 in 2,700 chance of Bennu colliding with Earth between 2175 and 2199. Understanding Bennu's trajectory and properties is essential for future planetary defense efforts.
The Complex Return Journey:
The OSIRIS-REx spacecraft spent nearly two years in close proximity to Bennu, collecting samples using its robotic arm in a groundbreaking "high five" maneuver. On its return to Earth, the spacecraft released a capsule containing approximately 8.8 ounces of Bennu's material. After a fiery reentry into Earth's atmosphere and a parachute-assisted descent, the capsule touched down in Utah's western desert.
Continuing the Cosmic Exploration:
While this mission is an extraordinary accomplishment, OSIRIS-REx's journey is far from over. The spacecraft, valued at $1 billion, has been redirected to explore another asteroid called Apophis, which is set to pass within 20,000 miles of Earth in 2029. This extended mission will involve detailed measurements and potential attempts to dislodge and study rocky material from Apophis.
NASA's OSIRIS-REx Mission Commemorated with Postage Stamp
NASA's OSIRIS-REx mission, which gathered an asteroid sample, will be celebrated with a commemorative postage stamp. The stamp highlights the spacecraft's sample capsule descent and mission milestones, emphasizing the importance of asteroid research and inspiring future leaders in space exploration.
NASA's OSIRIS-REx mission marks a significant milestone in space exploration, providing a window into the distant past of our solar system and offering clues about the origins of life on Earth. It demonstrates the remarkable capabilities of scientific missions and the unending quest to unravel the mysteries of the cosmos