Across
1
Blocking of light by a celestial body
4
Our home planet
7
Unit of power
Down
2
Icy body with a tail near the sun
3
Ball of burning gas in space
5
Unit of heredity
6
Basic unit of life
8
Particle of light
Blocking of light by a celestial body
Our home planet
Unit of power
Icy body with a tail near the sun
Ball of burning gas in space
Unit of heredity
Basic unit of life
Particle of light