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A new study suggests that a small asteroid called 2022 RD2 could orbit Earth as a temporary second moon in less than 20 years, before potentially impacting Earth decades later.

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36,651 次观看 • 6 个月前 •via X (Twitter)

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Earth has a temporary, tiny companion. While not quite a "mini moon," since it will never be captured by Earth's gravity, Asteroid 2024 PT5 does have a similar orbit as our planet and will linger in our vicinity for a few months.

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Astronomers recently discovered asteroid 2024 YR4, which has a small chance of impacting earth. #nasa #space #astronomy #meteor

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Watch Earth’s newest quasi-moon in motion. 🌍🌀 The new paper “Meet Arjuna 2025 PN7” confirms #asteroid 2025 PN7 is trapped in a quasi-satellite orbit, looping around Earth (in a rotating frame) from the 1960s to the 2080s.

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WTF, China built a 3-satellite constellation in Earth-moon space DRO-L is in sun-synchronous orbit DRO-A is in DRO orbit (around moon) DRO-B is just hanging around bw earth & moon space? This seems crazily difficult

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Asteroid 2022 RD₂ will become a mini-moon not once, but three times in 2043–2044. This may not exactly look like an orbit, But during each capture, if the Sun suddenly vanished, RD₂ would remain gravitationally bound to Earth indefinitely.

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When a mysterious force knocks the Moon out of its orbit and sends it hurtling toward Earth 😱😳 🎥 Moonfall (2022)

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It's been a big year for NASA—and in 2023, we're returning our first asteroid sample to Earth, sending @NASAAero breakthroughs to the skies, and announcing the #Artemis II crew that will orbit the Moon. Check out what's next:

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The simulation shows that the Moon may have formed when a Mars-sized body crashed into Earth, sending debris into orbit in a process that lasted only a few hours in

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