Across
1
Icy body with a tail near the sun
4
Blocking of light by a celestial body
6
Infectious microscopic agent
7
Amplified beam of light
9
Absolute temperature scale unit
Down
2
Gas form of a liquid
3
Reddish electrical conductor
5
Path of a planet around the sun
6
Hottest planet in solar system
8
Curved glass that refracts light
10
Ball of burning gas in space