Oldest known stars discovered in Milky Way
Q. Astronomers have discovered the oldest stars in the Milky Way dating back to when the universe was ______ million years old.- Published on 16 Nov 15a. 100
b. 200
c. 300
d. 350
ANSWER: 300
Scientists have discovered the oldest known stars at the heart of the Milky Way galaxy dating back to when the universe was 300 million years old. Stars are pure but contain material from an earlier star which died in the hypernova, an enormous explosion. The discovery of these 9 pure stars has changed theories about the environment of the early universe.
