Space debris and laser: what they have in common

1. Step 1. Space debris — uses — Orbital motion. They remain in orbit.
2. Step 2. Orbital motion — is used in — Space telescope. Above the atmosphere.
3. Step 3. Space telescope — is a kind of — Reflecting telescope. Hubble is a reflector.
4. Step 4. Reflecting telescope — has part — Mirror. The primary mirror.
5. Step 5. Mirror — is part of — Laser. A resonator made of mirrors.

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