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Astronomers Say Earth Has a Newly Discovered ‘Quasi-Moon,’ a Companion That Shares Its Orbit Around the Sun
['Margherita Bassi', 'Daily Correspondent', 'Margherita Bassi Is A Freelance Journalist', 'Trilingual Storyteller. Her Work Has Appeared In Publications Including Bbc Travel']
Damn Interesting Curated Links
Cool Finds Astronomers Say Earth Has a Newly Discovered ‘Quasi-Moon,’ a Companion That Shares Its Orbit Around the Sun Researchers are discussing 2025 PN7, a small celestial body that’s following a similar orbital path to our planet’s without being gravitationally tied to Earth Margherita Bassi - Daily Correspondent Get our newsletter!
From our perspective, quasi-moons look like they’re orbiting Earth, but in reality, they follow a sun-centered orbit very similar to our planet’s.
Fun fact: Trojan asteroids around Jupiter Earth isn’t the only planet with Trojan asteroids.
In fact, Jupiter’s Trojan asteroids form two large swarms ahead of and behind the gas giant.
If 2025 PN7 really has been a quasi-moon for decades, why have astronomers only noted it now?
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