Origin of each days of the week

 The days of the week originated from ancient Roman and Germanic cultures, and were named after celestial bodies and ancient gods.

Here's the origin of each day's name:

1. *Sunday*: Named after the Sun (Latin: Dies Solis)

2. *Monday*: Named after the Moon (Latin: Dies Lunae)

3. *Tuesday*: Named after Tiw (Norse god of war and law), equivalent to Mars (Latin: Dies Martis)

4. *Wednesday*: Named after Woden (Norse god), equivalent to Mercury (Latin: Dies Mercurii)

5. *Thursday*: Named after Thor (Norse god of thunder), equivalent to Jupiter (Latin: Dies Iovis)

6. *Friday*: Named after Frigga (Norse goddess), equivalent to Venus (Latin: Dies Veneris)

7. *Saturday*: Named after Saturn (Latin: Dies Saturni)

The Roman names for the days of the week were adopted from the ancient Greeks, who in turn named them after the planets in their solar system.

An overview of our Solar System:

 Here's an overview of our Solar System:

The Sun:

- The center of our Solar System

- A massive ball of hot, glowing gas

- Makes up 99.8% of the Solar System's mass

The 8 Planets:

1. *Mercury*: Closest planet to the Sun, smallest planet

2. *Venus*: Hottest planet, thick atmosphere

3. *Earth*: Only known planet with life, diverse ecosystems

4. *Mars*: Rocky planet, potential for life

5. *Jupiter*: Largest planet, gas giant

6. *Saturn*: Ringed planet, gas giant

7. *Uranus*: Tilted axis, icy planet

8. *Neptune*: Coldest planet, icy giant

Dwarf Planets:

1. *Pluto*: Most well-known dwarf planet

2. *Eris*: Largest dwarf planet

3. *Ceres*: Only dwarf planet in the asteroid belt

4. *Haumea*: Icy dwarf planet

5. *Makemake*: Icy dwarf planet

Other Objects:

1. *Asteroids*: Small rocky objects in the asteroid belt

2. *Comets*: Icy bodies that release gas and dust

3. *Kuiper Belt*: Region of icy bodies beyond Neptune

4. *Oort Cloud*: Distant region of icy bodies surrounding the Solar System

Interesting Facts:

1. The Solar System is about 4.6 billion years old.

2. The Sun loses about 1% of its mass every 100 million years.

3. The fastest planet is Mercury, with an orbital speed of 47,400 km/h.

4. The largest moon is Ganymede, orbiting Jupiter.