Our Galaxy and Solar System

The solar system consists of 8 major planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
The Sun is the main source of light for all planets.
Mercury is the closest planet to the Sun, with a rotation period of 88 days.
Venus is the hottest planet due to its high carbon dioxide content.
Earth is a unique planet with suitable climate conditions, landforms, and water bodies that support life in all forms.
Mars is known as the Red Planet due to its reddish appearance.
Jupiter is the largest planet in our solar system.
Saturn has beautiful rings made of dust and ice, with around 150 frozen moons orbiting it.
Uranus is a very cold planet with temperatures dropping to -224°C, and takes 84 Earth years to revolve around the Sun.
Neptune is known as the Ice Giant and takes 165 Earth years to revolve around the Sun.

There are 5 dwarf planets in our solar system: Ceres, Pluto, Haumea, Makemake, and Eris.
Jupiter's moon, Ganymede, has more water than Earth.

The solar system was formed 4.6 billion years ago when a cloud of dust and gas was disturbed by an explosion of a nearby star (supernova).
The solar nebula collapsed, and the particles began to fuse together, forming the Sun.
The remaining particles formed clumps, which eventually formed planets and moons.

The Sun is a massive ball of gas, with a radius of 432,168.6 miles.
The Sun is made up of 91% Hydrogen, 8.9% Helium, and 0.1% heavier elements.
The temperature at the surface of the Sun is about 5,600°C, which increases as you move towards the center.
The Sun is 93 million miles away from Earth.
The Sun is halfway through its lifetime and will last for another 6.5 billion years.

The Moon is a natural satellite of Earth.
The Moon's surface is actually dark.
The Moon's size is equivalent to that of Mars.
The most widely accepted theory of the Moon's formation is the Giant Impact Theory, which suggests that the Moon was formed when the proto-Earth and a planet called Thea collided.

The Earth was formed 4.5 billion years ago when a giant cloud of gas and dust collapsed.
The Earth's surface was initially hot and hostile, with seas of lava and a poisonous atmosphere.
Water from the Earth's interior rose to the surface, formed steam, and rained back to form oceans.
The Earth's crust cooled, and volcanic islands formed, which eventually joined together to create a single giant continent called Pangaea.

Pluto is a dwarf planet and not a full-fledged planet.
The IAU (International Astronomical Union) redefined the criteria for a planet in 2006, stating that a planet must:
1. Revolve around the Sun.
2. Be spherical in shape.
3. Clear the neighborhood around its orbit.
Pluto does not meet the third criterion and is therefore classified as a dwarf planet.
Pluto is part of the Kuiper Belt, a region of icy bodies and dwarf planets.
Pluto has ice volcanoes and an ocean hidden under its icy surface.

The solar system consists of 8 major planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
The Sun is the primary source of light and energy for the planets.
Mercury is the closest planet to the Sun, with a rotation period of 88 days.
Venus is the hottest planet due to its high carbon dioxide content.
Earth is a unique planet with a suitable climate, landforms, and water bodies that support life in all forms.
Mars is known as the Red Planet due to its reddish appearance.
Jupiter is the largest planet in our solar system.
Saturn is characterized by its beautiful rings made of dust and ice, with around 150 frozen moons orbiting it.
Uranus is a very cold planet with temperatures dropping to -224°C, and takes 84 Earth years to revolve around the Sun.
Neptune is known as the Ice Giant and takes 165 Earth years to revolve around the Sun.

There are 5 dwarf planets in our solar system: Ceres, Pluto, Haumea, Makemake, and Eris.
Jupiter's moon, Ganymede, has more water than Earth.

The solar system was formed 4.6 billion years ago when a cloud of dust and gas was disturbed by a nearby supernova explosion.
The solar nebula collapsed, and the particles began to fuse together, forming the Sun.
The remaining particles formed clumps, which eventually formed planets and moons.

The Sun is a massive ball of gas, with a radius of 432,168.6 miles.
The Sun is composed of 91% Hydrogen, 8.9% Helium, and 0.1% heavier elements.
The temperature at the surface of the Sun is about 5,600°C, increasing towards the center.
The Sun is approximately 93 million miles away from Earth.
The Sun is halfway through its lifetime and will last for another 6.5 billion years.

The Moon is a natural satellite of Earth.
The Moon's surface appears dark.
The Moon's size is equivalent to that of Mars.
The most widely accepted theory of the Moon's formation is the Giant Impact Theory, suggesting that the Moon was formed when the proto-Earth and a planet called Thea collided.

The Earth was formed 4.5 billion years ago when a giant cloud of gas and dust collapsed.
The Earth's surface was initially hot and hostile, with seas of lava and a poisonous atmosphere.
Water from the Earth's interior rose to the surface, formed steam, and rained back to form oceans.
The Earth's crust cooled, and volcanic islands formed, which eventually joined together to create a single giant continent called Pangaea.

Pluto is a dwarf planet and not a full-fledged planet.
The IAU redefined the criteria for a planet in 2006, stating that a planet must:
- Revolve around the Sun.
- Be spherical in shape.
- Clear the neighborhood around its orbit.
Pluto does not meet the third criterion and is therefore classified as a dwarf planet.
Pluto is part of the Kuiper Belt, a region of icy bodies and dwarf planets.
Pluto has ice volcanoes and an ocean hidden under its icy surface.