supernova
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
A massive explosion that occurs at the end of certain stars' lives, briefly outshining an entire galaxy.
Usage notes
A supernova can briefly release more energy than the sun will produce in its entire lifetime.
Test yourself
Which word fits the gap? "The _____ was visible in daylight for weeks, according to ancient astronomers who recorded it."
Answer: supernova
In your own words, what does "supernova" mean?
A massive explosion that occurs at the end of certain stars' lives, briefly outshining an entire galaxy.
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