Master Astronomy Cosmos with 213 free flashcards. Study using spaced repetition and focus mode for effective learning in Science.
The scientific study of celestial objects, space, and the physical universe.
The study of the universe's origin, evolution, and large-scale structure.
The Sun and the gravitationally bound system of planets, moons, and other bodies.
Eight (since Pluto's reclassification in 2006).
Mercury, Venus, Earth, Mars.
Jupiter and Saturn.
Uranus and Neptune.
A region between Mars and Jupiter populated by small rocky bodies.
A disk-shaped region beyond Neptune containing icy bodies, including Pluto.
A spherical shell of icy objects at the outer edge of the Solar System.
A G-type main-sequence yellow dwarf star at the center of our Solar System.
About 4.6 billion years.
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