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Planet Earth is parting ways with an intriguing asteroid that has been unofficially dubbed a “mini moon” over the past two months. This harmless cosmic traveler will drift away on Monday, significantly influenced by the sun’s stronger gravitational pull. However, it will make a brief return visit in January 2024.
Nasa plans to utilize a radar antenna to gain closer observations of the 33-foot asteroid during this fleeting encounter. This studying opportunity aims to enhance scientists’ knowledge of the celestial body known as 2024 PT5, which is likely a piece of rock propelled off the moon by a past collision with another asteroid.
Although it is labeled a mini moon, NASA emphasizes that this asteroid was never fully captured by Earth’s gravity, meaning it does not orbit our planet in the traditional sense. Nevertheless, experts consider it “an interesting object” worthy of further investigation.
The asteroid’s unique behavior was identified by astrophysicist brothers Raul and Carlos de la Fuente Marcos from Complutense University in Madrid. Their extensive collaboration with telescopes located in the Canary Islands has led to hundreds of observations of this remarkable space rock.
Currently situated more than 2 million miles away, the asteroid remains too small and faint for viewing without powerful telescopes. In January, it will pass within approximately 1.1 million miles of Earth, ensuring a safe distance as it resumes its greater journey through the solar system. After that, Earth must wait until 2055 for its next appearance, when it will be almost five times farther away than the moon.
2024 PT5 was first detected in August this year. After being drawn into Earth’s gravitational influence in late September, the asteroid initiated a horseshoe-shaped trajectory around our planet.
As it returns next year, astronomers anticipate that the asteroid will be moving at more than double its initial speed, which was noted in September. Raul de la Fuente Marcos highlights that this acceleration means it will travel too quickly to linger in proximity to Earth.
Nasa will track the asteroid for over a week in January using the Goldstone solar system radar antenna located in California’s Mojave Desert, part of its extensive Deep Space Network. This monitoring mission will be crucial for gathering valuable data on the asteroid’s characteristics and trajectory.
Current predictions indicate that during its visit in 2055, the solar-orbiting asteroid will once again perform a partial and temporary lap around Earth. This intermittent relationship highlights the complex dynamics between our planet and nearby celestial bodies.
As the years pass, this asteroid will continue its journey, providing scientists and space enthusiasts alike a fascinating glimpse into the intricate workings of our solar system.