AI Insight
Astronomers have discovered an ultra-faint dwarf galaxy named And XXXVI in the vicinity of the Andromeda galaxy (M31), which may be approximately 12.5 billion years old. The galaxy is one of the faintest satellite galaxies found orbiting Andromeda to date. The findings were published in the peer-reviewed journal Astronomy & Astrophysics.
Why it matters
This discovery helps astronomers better understand the population of satellite galaxies around large spiral galaxies and provides insights into early galaxy formation in the universe. Ultra-faint dwarf galaxies are considered fossil relics from the early universe and can reveal information about dark matter distribution and the conditions present billions of years ago.
Understand the Science
A new ultra-faint dwarf galaxy has been discovered in the vicinity of Andromeda (M31), the Milky Way’s large neighboring galaxy. The new study, published in Astronomy & Astrophysics suggests that the galaxy, named And XXXVI, is one of the faintest satellite galaxies discovered around Andromeda to date.
Source: Ultra-faint galaxy discovered near Andromeda may be 12.5 billion years old