1. Why Is Pluto No More Considered a Planet?
Initially, Pluto was considered a dwarf planet,
but now it is no more considered a planet for the following reasons:
- Pluto has several celestial bodies in orbit, which is not a proper characteristic of a planet.
- Pluto has many satellites, and some of those are almost like Pluto.
- In 2005, scientists discovered a planetary body named Eris, bigger than Pluto.
2. Which Planets Have Water?
- The Earth, mercury, mars, Jupiter, Saturn, Uranus and Neptune, have water on them.
3. What Is a Galaxy?
- A large group of celestial bodies are called galaxies.
- The whole solar system and the Milky Way are a part of a galaxy.
- Some galaxies are visible through the naked eye in the night sky.