extragalactic

American  

[ek-struh-guh-lak-tik] / ˌɛk strə gəˈlæk tɪk /

adjective

1. outside the Milky Way system.

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extragalactic British  

/ ˌɛkstrəɡəˈlæktɪk /

adjective

1. occurring or existing beyond the Galaxy

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Etymology

Origin of extragalactic

First recorded in 1850–55; extra- + galactic

Example Sentences

The research, published today in Nature Astronomy, introduces a new way to study how distant galaxies develop and establishes an emerging field known as "extragalactic archaeology."

From Science Daily

This is the first time a star of extragalactic origin has been found in the vicinity of the super massive black hole.

From Science Daily

The four researchers stressed in their paper that they haven't conclusively shown that the black hole's spin "truly powers the extragalactic jet," though the evidence certainly leans in that direction.

From Science Daily

Unlike the Hubble and James Webb Space Telescopes, which focus deeply on one part of the sky at a time, scientists will use Euclid to cover wide swaths of the extragalactic sky at once.

From New York Times

An extragalactic outburst whose light hurtled through the inner solar system last fall was 70 times brighter than any other such eruption that scientists have observed, researchers report.

From Scientific American