So for this weeks I wonder topic I'm gonna be talking about galaxys and what we know about them.
First off Google says a galaxy is a cluster of millions and billions of stars, gas, and dust held together by gravatational attraction. There are also 6 types of galaxys: Barred spiral, irregular, spiral, peculiar, elleptical, and lenticular.
Our galaxy is the milky way is classified as a barred sprial galaxy.
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| The milky way |
Back to the milky way now. The milky way is called the milky way because Romans called it "via latea" which translates to "road of milk". The Greeks called it "galaxias kyklos" which is "milky circle".
P.S - There are 1 billion trillion known stars in the observable universe which is really cool.
That is so cool Molly, great job! I didn't know that there were different types of galaxies! I wonder, is there a reason they are each different colours?
ReplyDeleteAwesome job Molly, I learned a lot from your post, I had no idea there was so many stars out there. I mean I knew there was a lot but 1 billion trillion?! Damn. I wonder if there is any more life inside those galaxies? That'd be cool.
ReplyDeleteGreat Job Molly! You have included some interesting info here. From your blog post I have learned that there are 1 billion, trillion stars in the observable universe. This makes me wonder how many stars there are in total, including the ones we cannot see. What do you think about this? I enjoyed reading this post, I can't wait to read the next one.
ReplyDelete- Nadia
We don't know how many stars in total there are as we are unable to see them. Sometime in the future though, when there are even better telescopes, then we'll probably find more stars.
DeleteGreat job Molly Idid not no how many types of galaxies there are in the world and the facts are interesting to learn and I did not know who called the milky way that name
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