Planet
Meaning
A celestial body moving in an elliptical orbit round a star.
Pronunciation
UK ˈplænɪt
US ˈplænɪt
Example Sentences
- [Michael] Jordan, a basketball player, is one of the most famous sportsmen on the planet.
- Beyond the orbit of Neptune (the furthermost planet), it takes a long time to leave the Solar System.
- Planet rovers are robots for exploring distant planets.
- Because it takes a long time to send a radio signal from Earth to another planet, the robots do much of their work alone, without commands from Earth.
- Mercury is the smallest and innermost planet in the Solar System.
- Because Mercury was the fastest planet as it moved around the Sun, it is named after the Roman deity Mercury, the messenger of the gods.
- And MESSENGER, launched in 2004, orbited Mercury over 4,000 times in four years before exhausting its fuel and crashing into the planet's surface on April 30, 2015.
- Mercury is the most cratered planet in the Solar System.
- Mars is the fourth planet from the Sun and the second smallest planet in the Solar System after Mercury.
- Mars is often referred to as the "Red Planet" because the reddish iron oxide prevalent on its surface gives it a reddish appearance that is distinctive among the astronomical bodies visible to the naked eye.
Learn Planet in Context
A Night Under a Clear SkyThe night sky was filled with thousands of stars, and I could not stop looking up. I walked outside after dinner and felt the cool air on my face. The moon was bright and round, lighting up the field...Read story 
A Simple Look at the Solar SystemThe solar system is so large that light takes over eight minutes to travel from the Sun to Earth. It is made up of the Sun, eight planets, and many smaller objects such as moons and asteroids. The Sun...Read story 
What Beach Cleanups Can Teach UsEvery year, millions of pieces of plastic wash up on beaches around the world. Beach [cleanups] are more than just picking up trash. They are powerful lessons about how humans affect the ocean. When v...Read story
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Practice Planet
Read, listen, and practise using “Planet” in fun stories and activities.