Is there a list of a-z space words?

Yes, For example: Asteroid

Black hole

Corona

Dust

Eclipse

Flare (solar)

Galaxy

Hubble (Telescope)

Ions

Jansky

Kelvins

Light

Matter

Nebula

Orbit

Planet

Quasar

Radiation

Satellite

Thermocouple

Umbra

Vulcan

WIMP

XMM

Ylem

Zenith