13.21 billion years
Milky Way, Age
Age of the Milky Way - Universe Today
www.universetoday.com/21822/age-of-the-milky-way/
Dec 4, 2008 ... The age of the Milky Way is a tricky question to answer, though, because we can say that the oldest stars are 13.4 billion years old but the galaxy as we know it today still had to form out of globular clusters and dwarf elliptical galaxies in an elegant gravitational dance.
Milky Way - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Milky_Way
Several individual stars have been found in the Milky Way's halo with measured ages very close to the 13.80-billion-year age of the Universe. In 2007, a star in the galactic halo, HE 1523-0901, was estimated to be about 13.2 billion years old.
Milky Way's Age Narrowed Down - Space.com
www.space.com/263-milky-age-narrowed.html
Aug 17, 2004 ... The overall universe is about 13.7 billion years old.
... Astronomers have known that the Milky Way is among the oldest of galaxies.
... The study puts its age at 13.6 billion years, give or take 800 million years.
Milky Way age map shows growth rings | Science Wire | EarthSky
earthsky.org/space/milky-way-age-map-shows-growth-rings
Jan 12, 2016 ... The first-ever complete age map of the Milky Way shows that our galaxy grew
from the inside out.
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