The solar system’s “moon race” reached a new milestone on March 16, 2026, as the Minor Planet Center officially announced the discovery of 15 new natural satellites. The haul includes four new moons for Jupiter and 11 for Saturn, reinforcing the idea that the deeper we look into the gravity wells of our gas giants, the more “hidden” family members we find.
Saturn: The Undisputed “Moon King”
With 11 new additions, Saturn has widened its lead in the planetary tally. Most of these new moons belong to the Norse group, a collection of irregular satellites that orbit the planet in a “retrograde” direction (opposite to Saturn’s rotation).
- New Total: Saturn now boasts a staggering 285 known moons.
- The Discovery Team: The 11 new satellites were identified by a team led by Edward Ashton at the Academia Sinica Institute of Astronomy and Astrophysics (ASIAA) in Taiwan.
- Characteristics: These moons are tiny—roughly 3 km (1.9 miles) in diameter—and were discovered by “stacking” multiple long-exposure images from the Canada-France-Hawaii Telescope (CFHT) to find faint moving dots.
Jupiter: Breaking the 100-Moon Barrier
For Jupiter, this discovery is a historic “century” moment. The addition of four new moons officially pushes the planet’s count into triple digits.
- New Total: Jupiter now has 101 known moons.
- The Discovery Team: Veteran moon-hunters Scott Sheppard (Carnegie Institution for Science) and David Tholen (University of Hawaii) tracked these down using the 8-meter Subaru Telescope and the Magellan–Baade telescope in Chile.
- The “Lost” Moons: One of the “new” discoveries, designated S/2024 J 1, was actually a recovery of a candidate first spotted a few years ago that required more data to confirm its orbit.
| Metric | Jupiter | Saturn |
| New Discoveries | 4 | 11 |
| Current Grand Total | 101 | 285 |
| Avg. Size of New Moons | ~3 km | ~3 km |
| Observational Status | Faint (Mag 25–27) | Faint (Mag 25–27) |
Why are we finding so many now?
These discoveries aren’t due to new moons forming, but rather our improving “digital vision.” 1. Long-Term Surveys: Astronomers are now comparing photos taken years apart to confirm that a faint speck of light is actually “stuck” in orbit and isn’t just a passing asteroid.
2. AI-Assisted Stacking: New algorithms can automatically “stack” hundreds of images, effectively increasing the sensitivity of telescopes to see objects that were previously invisible.
3. The “Collisional” Theory: Scientists believe many of these tiny moons are fragments of much larger “parent” moons that were shattered by collisions billions of years ago.
Can you see them?
Unfortunately, no. These moons are far too small and dim (magnitude +25 to +27) for even the most advanced amateur telescopes. However, if you want some celestial action this month, you can look for Jupiter near the constellation Gemini. On March 25–27, 2026, the first-quarter moon will swing by Jupiter, making for a beautiful naked-eye alignment.
