Explanation

• Stars generate their own light through nuclear fusion in their cores.
• It making them self-luminous.

Explanation

• Our sun is one of the billions of stars in the Milky Way galaxy.
• The Milky Way is estimated to contain between 200-400 billion stars.

Explanation

• Gas Giants are large, gaseous planets that are primarily composed of hydrogen and helium, and include Jupiter, Saturn, Uranus, and Neptune.
• They have no solid surface and are characterized by their massive size and atmospheric composition.

Explanation

• Terrestrial planets are small, rocky planets that orbit close to the Sun, and include Mercury, Venus, Earth, and Mars.
• They are composed primarily of silicate rocks and metals, and have surfaces that are heavily cratered.

Explanation

The Sun was formed about 4.57 or 4.6 billion years ago.

Explanation

The average distance from the Earth to the Sun is approximately 150 million kilometers.

It is also called 1 astronomical unit (or AU).

Explanation

• The Sun is so massive that it would take about 1,300,000 Earths lined up side by side to equal the Sun's diameter.
• Alternatively, you could fit approximately 1.3 million Earths inside the Sun.

Explanation

• The Sun is approximately 330,000 times more massive than the Earth.
• It means it has a mass of about 1.989 x 10^30 kilograms.
• The Earth has a mass of about 5.972 x 10^24 kilograms.

Explanation

• The Sun is approximately 109 times larger than the Earth in terms of diameter.
• The Sun's diameter is about 1,392,684 kilometers (865,374 miles).
• The Earth's diameter is about 12,742 kilometers (7,918 miles).
• So, if you were to line up 109 Earths side by side, they would roughly equal the diameter of the Sun.

Explanation

• The Solar System consists of eight planets (Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter), dwarf planets, asteroids, comets, meteoroids.
• Other smaller bodies that orbit around the Sun due to its gravitational pull.