Space

1. Black Holes

1.1. Extremely strong pull

1.2. Light can't escape

1.3. NASA found a black hole

1.4. Form when stars blow up

1.5. Not just a hole

2. Planets

2.1. Named after roman gods and goddesess

2.2. Orbit around the sun

2.3. Cold hot and rocky or gasseous

3. Nebula

3.1. The nursery of stars

3.2. Come in different shapes

3.3. Very pretty

3.4. Light types or Dark types

4. Eclipses

4.1. Very rare

4.2. Happen when the Sun, Moon and Earth are perfectly aligned