The total number of planets in the universe is unknown, but there are likely many billions, perhaps many with conditions similar to Earth.
More than 300 planets outside our solar system have been discovered. All are within our own Milky Way galaxy, because accurate observations of planet-sized masses in other galaxies is not currently possible. Theoretical extrapolations suggest that there are indeed planets around many stars in other galaxies as well.
Wiki User
∙ 11y agoWiki User
∙ 10y agoRelatively 2.5 billion. Remember, The Milky Way is still a big place, so these mathematical calculations seem reliable. However, if you want to find out how many cryovolcanoes have been scientifically documented, then you're looking at what could be 1.5 to 2.34 billion.
Wiki User
∙ 5y agoThere are over 100 billion galaxies (100 billion+ stars per galaxy) in the universe.
Wiki User
∙ 9y agoThere are probably more than 170 billion galaxies in the observable universe.
Wiki User
∙ 12y agoThe universe is bigger than a galaxy. If we reword the question to read "How many galaxies are in the universe?", the answer would be hundreds of billions.
Wiki User
∙ 12y agoIt is believed that there are over 170 billion galaxies in the observable universe.
Wiki User
∙ 12y agoOne
About 30.
yes
NO! galaxys are many thousand times bigger than our solar system
At its centre.
Ultraviolet
The path of univers's galaxys
The center of the elliptical galaxy is very dense with many stars, and density decreases farther out.
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the milky wayis the galaxy that our sun is in
Itouch defiantly.
Between $120-$150
5cm wide and 8cm tall