🔬 Discovery

Kordylewski cloud

Nubes de Kordylewski

Date
1961 · confidence medium
Place
Tatra Mountains, Slovakia
Credited to
Kazimierz Kordylewski
Field
Cosmos & Earth

⚠️ Disputed: the sources disagree.

What was discovered

Sparse clouds of cosmic dust that accompany the Moon at the Earth-Moon system's L4 and L5 Lagrange points; extremely hard to observe, their existence was controversial for decades.

First spotted by Kordylewski in 1961 from the Tatra Mountains; later observations gave contradictory results and their existence was only tentatively confirmed in 2018.

What it led to

  • Studies of interplanetary dust at libration points
  • Tentative confirmation via polarimetry in 2018

Built on

  • Lagrange points

Links

Sources✓ verified 2026-09-28