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Mercury
The smallest planet and closest to the Sun
Venus
The hottest planet, with a thick toxic atmosphere
Earth
The only known planet with life
Mars
Known as the 'Red Planet' due to iron oxide on its surface
Jupiter
The largest planet in the solar system
Saturn
Known for its prominent ring system
Uranus
An ice giant that rotates on its side
Neptune
The farthest planet from the Sun, known for strong winds
Pluto
A dwarf planet located in the Kuiper Belt
Sun
The star at the center of our solar system
Moon
Earth's only natural satellite
Asteroid
A small rocky object that orbits the Sun
Comet
An icy body that releases gas and dust, forming a visible tail near the Sun
Meteor
A streak of light caused by a small object burning up in Earth's atmosphere
Meteorite
A meteor that survives and lands on Earth's surface
Galaxy
A massive collection of stars, gas, and dust bound together by gravity
Milky Way
The galaxy that contains our solar system
Black hole
A region of space with gravity so strong that not even light can escape
Star
A massive ball of gas that produces light through nuclear fusion
Constellation
A recognizable pattern of stars in the night sky
Orbit
The curved path an object takes around another object due to gravity
Solar system
The Sun and everything that orbits it
Light-year
The distance light travels in one year, used to measure space distances
Nebula
A cloud of gas and dust in space, often where stars are born
Supernova
The explosive death of a star
Rotation
The spinning of a planet on its own axis
Revolution
The movement of a planet around the Sun
Axis
The imaginary line a planet spins around
Gravity
The force that attracts objects with mass toward each other
Astronaut
A person trained to travel and work in space
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