
(παντός)
σύμπαν
all that exists in the physical world, such as space, planets, galaxies, etc.

(σύμπαν)
κόσμος
the universe, particularly when it is thought of as a systematic whole

(γαλαξίες)
γαλαξίας
a large number of star systems bound together by gravitational force

(Αστρονομικές επιστήμες)
Αστρονομία
a branch of science that studies space, planets, etc.
Astronomy is the scientific study of celestial bodies like stars, planets, moons, and galaxies, as well as the phenomena that occur beyond Earth's atmosphere. It involves observing the universe to understand its origins, structure, and evolution. Astronomy not only helps us learn about the cosmos but also provides insights into the fundamental laws of physics and the potential for life beyond Earth.

(ο Γαλαξίας της Τεξανής)
η Μαγική Λωρίδα
a pale band of light seen in the sky at night that contains the solar system and billions of other stars
Γραμματικές Πληροφορίες:

(ηλιακή οικογένεια)
ηλιακό σύστημα
the sun and the group of planets orbiting around it, including the earth
Γραμματικές Πληροφορίες:

(αεροναυτική)
αεροδιαστημική
the earth's atmosphere and the space beyond it

(εφελκυστική δύναμη)
βαρύτητα
(physics) the universal force of attraction between any pair of objects with mass

(αστροεπιστήμονας)
αστρονόμος
a scientist who studies or observes planets, stars, and other happenings in the universe

(συμπλέγματος αστεριών)
αυγεία
a specific group of stars that form a pattern and have a name related to their shape

(ηλίου)
ηλιακός
related to the sun

(λυθικός)
σεληνιακός
relating to the moon

(Θεωρία της Μεγάλης Έκρηξης)
Μεγάλη Έκρηξη
the explosion that, according to most scientists, caused the existence of the universe
Γραμματικές Πληροφορίες:

(σκοτεινός ήλιος)
μαύρη τρύπα
a place in the space with such high gravity that pulls in everything, even light
Γραμματικές Πληροφορίες:

(κομήτης του ουρανού)
κομήτης
an object in space that is a mass of ice and dust and when it nears the sun it starts illuminating in the shape of a tail

(κοσμικό)
κοσμικός
related to the universe and the vast space outside the earth

(μετεωρίδιος)
μετεωρίτης
a piece of rock coming from outer space that passes through the Earth's atmosphere, producing light

(μετεωρίτης σώμα)
μετεωρίτης
a piece of rock or metal from space that has hit the surface of the earth

(σκοτοδίνη)
έκλειψη
a period during which the sun or the moon is shadowed by a dark circle

(Άλλος κόσμος)
Εξωγήινος
a creature that is believed to exist in other worlds or planets

(satellite)
δορυφόρος
an object sent into space to travel around the earth and send or receive information

(στροφοδρομία)
περίγυρος
to move around a star, planet, or a large object in space
Γραμματικές Πληροφορίες:

(περιστροφής (peristrofis))
στροφής (strofis)
the action of circular movement around a fixed point

(διαστημάνθρωπος)
αστροναύτης
someone who is trained to travel and work in space

(διαστημικό σκάφος)
διαστημόπλοιο
a vehicle designed to travel in space

(διαστημική αποστολή)
αποστολή
an operation carried out in space
Γραμματικές Πληροφορίες:

(ξεκινώ)
εκτοξεύω
to send an object, such as a satellite, missile, etc., into space
Γραμματικές Πληροφορίες:

(μη αναγνωρίσιμα αντικείμενα στον αέρα)
άγνωστοι ιπτάμενοι δίσκοι
a mysterious object that some people claim to have seen flying around in the sky and assume that it is a spaceship from another world
Γραμματικές Πληροφορίες:

(ταξίδι)
ναυ航
a long journey taken on a ship or spacecraft

( η Υπηρεσία Εναέριας και Διαστημικής Δραστηριότητας των ΗΠΑ)
NASA
a US government agency responsible for space travel and the study of space

(δόση)
ακτίνα
a narrow beam of light, heat, or other form of energy
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