A recent study reveals that the space rock 2024 PT5, previously recognized as a mini-moon, is likely a fragment ejected from the moon due to prior impacts. This discovery signifies the second confirmed lunar-origin near-Earth object, suggesting the existence of previously unknown 'exiled moon rocks.' Researchers from Lowell Observatory have indicated that many of these lunar ejecta could be lingering in orbits around Earth, presenting new opportunities for astronomical investigation using advanced observational tools like ATLAS.
The researchers concluded that 2024 PT5 is likely a chunk of the moon, suggesting it was ejected by an impact on the lunar surface within the past tens of thousands of years.
This finding highlights a population of lunar ejecta that may have gone unnoticed, with Teddy Kareta stating that 'we knew that lunar ejecta were potentially hiding in these kinds of really near-Earth orbits'.
This is the second instance of scientists linking a near-Earth object to the moon, further emphasizing the ongoing exploration of celestial connections between Earth and the moon.
Astronomers are now better equipped to spot these temporary celestial companions through advanced observatories like the Asteroid Terrestrial-impact Last Alert System (ATLAS).
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