galaxy

Round things

. earth

. month

. Mars

. Sun

. asteroid: aeste'r)id 

If a asteroid as large as the one has hit on Earth hit our planet again,  Human being might die out / exterminate.

. planet

My very educated mother just shows us nothing

1.Mercury: Me:kjuri   水星

2. Venus: vines 金星

3. Earth

 4. Mars 

5. Jupiter 木星

6. Saturn: saeten 土星

7. Uranus: ju:renes 天王星

8. Neptune: N3ptu:n 海王星

Space:

.universe: ju:nivers

. gravity: graeviti

. astronaut: aestre'n)t