Earth has a new mini-moon—and it’s only visiting for a short time 🌍🌑

Look up at the night sky and you’ll still see our familiar Moon. But right now, Earth has another, much smaller companion.

It’s called 2026 QQ8, and it’s a tiny space rock that has been temporarily caught by our planet’s gravity. Astronomers call objects like this mini-moons.

Don’t expect to see a second glowing moon in the sky, though. This visitor is estimated to be only about two meters across—small enough to be easily missed, even by many telescopes.

How did Earth get a mini-moon?

Space is full of rocks traveling around the Sun. Occasionally, one passes close enough to Earth, and at just the right speed, for our planet’s gravity to capture it temporarily.

That appears to be what happened with 2026 QQ8. Astronomers first observed the object in August 2026, and calculations suggest Earth’s gravity captured it earlier in the year.

On October 29, 2026, the International Astronomical Union’s Minor Planet Center issued a notice identifying 2026 QQ8 as a temporarily captured object. Researchers have encouraged further observations to learn more about it.

Is it here to stay?

No. Unlike our Moon, this little visitor won’t remain with Earth permanently.

Its path is influenced by the gravity of Earth, the Moon and the Sun. Eventually, those forces will carry it away from Earth’s temporary hold and back onto its own path around the Sun. Current reports differ on the exact timing, so astronomers will need more observations to refine the prediction.

Can we see it?

Not with the naked eye. Because 2026 QQ8 is so small and faint, observing it requires specialized astronomical equipment.

But even if we can’t spot it ourselves, the discovery is a reminder that our neighborhood in space is more active than it looks. While we go about our daily lives, a tiny traveler is sharing our corner of the solar system—for a little while.

Image: Asteroid Bennu, photographed by NASA’s OSIRIS-REx spacecraft. This illustrative image does not show 2026 QQ8. Credit: NASA/Goddard/University of Arizona. NASA image source.

Sources: Minor Planet Center, NASA JPL Small-Body Database, space news report.