--- title: "Earth Has a New 'Mini-Moon': Asteroid 2026 QQ8 Orbiting the Planet for Just a Few Months" description: "The IAU Minor Planet Center has confirmed the existence of asteroid 2026 QQ8, a new temporary Earth satellite measuring 1–2 meters in diameter. The object was captured by gravity in April and will leave orbit in the coming months." date: 2026-11-14T18:45:52.461Z lang: en url: https://xab.info/en/posts/earth-has-new-mini-moon-asteroid-2026-qq8 tags: [asteroid, earth, mini-moon, space, astronomy, 2026-qq8, solar-system] author: "Alexander Buran" publisher: "XAB.info" --- # Earth Has a New 'Mini-Moon': Asteroid 2026 QQ8 Orbiting the Planet for Just a Few Months ![Asteroid 2026 QQ8 flying past Earth in outer space](https://xab.info/media/2026/11/14/u-zemli-poyavilas-miniluna-asteroid-2026-qq8/u-zemli-poyavilas-miniluna-asteroid-2026-qq8-1.webp) ## Key Points - Asteroid 2026 QQ8, measuring 1–2 meters in diameter, has become Earth's fifth known temporary satellite - The object was captured by the planet's gravity in April 2026 and will leave its orbit in the coming months - Before 2026 QQ8, the last mini-moon (2024 PT5) was observed in August 2024 - All known mini-moons are located at a distance of more than 500,000 km from Earth and pose no danger In October 2026, the International Astronomical Union's Minor Planet Center officially announced the discovery of a new temporary Earth satellite: asteroid 2026 QQ8. The object was first spotted back in August of this year by Hungarian astronomer Krisztián Sárneczky, but public confirmation of its status arrived only two months later. According to available estimates, the asteroid's diameter is just 1–2 meters, and its distance from Earth exceeds 500,000 km — significantly farther than the Moon. Astronomers believe the gravitational capture took place in April 2026, and within the next couple of months, the object will leave our planet's vicinity and return to a heliocentric orbit. ### What Is a 'Mini-Moon' and How It Differs from a Quasi-Moon The term 'mini-moon' is applied to small asteroids that temporarily fall into Earth's gravitational field and begin orbiting it as a full-fledged, albeit tiny, satellite. This fundamentally distinguishes them from so-called quasi-moons — asteroids that move in an orbit close to Earth's, but are not gravitationally bound to our planet. 'Quasi-moons are interesting because they don't orbit our planet the way the Moon does — they're just hanging out nearby,' explains Dr. Jennifer Millard, an astronomer, in a comment to the BBC. One prominent example of a quasi-moon is asteroid 2025 PN7, discovered in August 2025 and moving almost synchronously with Earth for several decades. ### Rarity of the Phenomenon: Only Five Known Cases According to the non-profit organization The Planetary Society, which promotes space research, prior to the discovery of 2026 QQ8, only four such temporary satellites had been recorded, and none of them are currently orbiting Earth. The last mini-moon, 2024 PT5, was observed in August 2024. It was about 10 meters long, and subsequent chemical composition analysis suggested the object might be a fragment of the Moon ejected into space as a result of an asteroid impact in the distant past. 2024 PT5 spent just a few months in Earth's vicinity before heading into deep space. According to several astronomers, it will make another close pass by our planet in 2055. ### Are 'Ghost Moons' Dangerous to Humanity Despite the fact that by astronomical standards these objects are relatively close, they never approach Earth closely enough to pose a threat. Even at their closest point, their distance from the planet is several times greater than the lunar distance. 'It's not like they come screaming out of the dark,' Dr. Millard explains. 'If they were coming toward us, it would happen very slowly; we would notice them in advance.' Thus, asteroid 2026 QQ8, like its predecessors, represents purely scientific interest rather than a potential danger to human civilization. ### The Mystery of 'Ghost Moons' Remains Open In addition to mini-moons and quasi-moons, scientific literature mentions so-called 'ghost moons' — hypothetical swirling clouds of cosmic dust moving in the same orbit as Earth and capable of staying ahead of or behind our planet. There is no unified scientific consensus on whether they actually exist yet. Dr. Millard notes that there is a huge amount of dust in interplanetary space, and she wouldn't be surprised if some of it gets trapped by gravitationally stable points in Earth's orbit. For now, however, no such object has been observationally confirmed, and 2026 QQ8 remains the first genuinely recorded temporary satellite of our planet in two years. ## Fact-Check & Sources - [У Земли появилась минилуна, и это не в первый раз](https://www.bbc.com/russian/articles/c962pm0k55xjo) - Primary source. Contains data from the IAU Minor Planet Center, comments from Dr. Jennifer Millard, and statistics from The Planetary Society. All key facts (size, distance, capture date, previous mini-moons) are presented consistently and do not contradict each other. ## FAQ ### What is a mini-moon? A mini-moon is a small asteroid temporarily captured by Earth's gravitational field that orbits it like a satellite. Typically, such objects remain in orbit for less than a year before leaving the planet's vicinity. ### What is the size of asteroid 2026 QQ8? Asteroid 2026 QQ8 has a diameter of just 1–2 meters. For comparison, the previous mini-moon, 2024 PT5, was about 10 meters long. ### Does 2026 QQ8 pose a danger to Earth? No. The asteroid is located at a distance of more than 500,000 km from the planet — significantly farther than the Moon. Even at its closest point, it does not approach close enough to pose a threat. ### How many Earth mini-moons were discovered before 2026 QQ8? According to The Planetary Society, four temporary satellites had been recorded prior to the discovery of 2026 QQ8. The last of these was asteroid 2024 PT5, observed in August 2024. ### How does a mini-moon differ from a quasi-moon? A mini-moon actually orbits Earth under the influence of its gravity. A quasi-moon, on the other hand, moves in a heliocentric orbit close to Earth's and is not gravitationally bound to our planet — it only appears visually to be a satellite.