What context can I use each word in?
Learn when and how to use these words with these examples!
planetary
Example
Jupiter is a planetary giant with a diameter of over 86,000 miles. [planetary: adjective]
Example
The astronomer specializes in planetary science and has discovered several new exoplanets. [planetary: adjective]
Example
The alignment of the planets created a rare planetary conjunction visible from Earth. [planetary: adjective]
cosmic
Example
The cosmic microwave background radiation is a remnant of the Big Bang. [cosmic: adjective]
Example
The astrophysicist studies cosmic rays and their effects on the Earth's atmosphere. [cosmic: adjective]
Example
The concept of infinity is often associated with the cosmic scale of the universe. [cosmic: adjective]
Good things to know
Which word is more common?
Planetary is more commonly used than cosmic in scientific contexts, especially in the field of planetary science. However, cosmic is more commonly used in philosophical or spiritual contexts, where it conveys a sense of awe and wonder at the vastness and complexity of the universe.
What’s the difference in the tone of formality between planetary and cosmic?
Both planetary and cosmic can be used in formal and informal contexts, depending on the context and audience. However, planetary is more commonly used in technical or scientific writing, while cosmic is more commonly used in philosophical or spiritual writing.
