English: Science Our solar system

English	Greek	Transliteration
Our solar system	Το ηλιακό μας σύστημα
Our solar system is really, really big!
It is also very, very old.
Scientists think our solar system is about 5 billion years old.
Scientists who study our solar system are called astronomers.
People who explore the solar system are called astronauts.
Astronomers and astronauts help us to learn about our solar system.
Our solar system is made up of the Sun and 9 planets.
There are also moons, comets, and asteroids.
Most of our solar system is empty space filled with gas and dust.
The planets are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.
Some of the planets have moons.
Saturn has 3 rings.
The planets orbit around the sun.
The moons orbit around their planets.
In drawings the planets look very close to each other.
They aren't!
They are very, very, far away from each other.
solar system	Ηλιακό σύστημα
astronomer	Αστρονόμος
comet	Κομήτης
asteroid	Αστεροειδής
planet	Πλανήτης
Mercury	Ερμής
Venus	Αφροδίτη
Mars	Άρης
Jupiter	Δίας
Saturn	Κρόνος
Uranus	Ουρανός
Neptune	Ποσειδώνας
Pluto	Πλούτων
moon	φεγγάρι
sun	ήλιος
Earth	πλανήτης γη
star	αστέρι

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