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nova
A nova is a specific astronomical event characterized by a sudden increase in brightness. In common conversation, it is often confused with a supernova. While both involve a dramatic increase in luminosity, a nova is a recurring event that does not destroy the star, whereas a supernova is a cataclysmic explosion that typically results in the total destruction of the star or the creation of a black hole.
In a non-scientific or metaphorical context, "nova" is occasionally used to describe a person or thing that rises to sudden, brilliant prominence before fading quickly, though this is less common than the literal astronomical usage.
The term is used primarily in scientific, educational, or hobbyist astronomy contexts. It carries a neutral, descriptive tone and is not used as a casual slang term.
Meanings
Examples
The telescope captured a brilliant nova in a distant galaxy.
A nova occurs when a white dwarf accumulates enough hydrogen from its companion star.
I wonder if a nova would be visible to the naked eye from Earth.
The sudden appearance of a nova surprised the astronomers.
The sudden appearance of a nova surprised the astronomers.
Is a supernova different from a regular nova?
The light from the nova faded slowly over several weeks.
The ancient records describe a nova that appeared in the night sky centuries ago.