Yes, there are more than
just our own.
Massive systems of stars, dust and
gas held together by gravity.
Galaxies usually have a clump of stars
at the center called the central bulge.
Most larger galaxies have a black hole
at the center.
stars (bulge) at
center with spiral
of the galaxies in
Barred Spiral Galaxies…
Similar to a regular spiral galaxy but
with a cross bar cutting through the
center with arms swirling at the ends
You guessed it!
They are elliptical
in shape!! (I know
you know what
These are the galaxies that are neither
elliptical nor spiral; they are a variety of
Our Galaxy is…..
The Milky Way Galaxy!
Barred spiral galaxy
120,000 Light years
Every star we see in
the night sky
What’s in the center?
We know that we have what’s called a
It has been recently confirmed that there
is a massive black hole in the center of the
WHAT?!?!? Black Hole?? Nooo!
The Black hole has 4 million times the
mass of the sun, but is billions of times
weaker than black holes in other galaxies.
Sooo… Don’t worry! It’s not going to
“suck” us into it. We’re fine. (but if it did,
you know what would happen…. We
Our closest neighbor: Andromeda!
• Andromeda is our
• It is approximately
2.5 million light
years away from
us and is classified
as a spiral galaxy.