Spiral galaxies are beautiful and swirly. But why? The answer my surprise you. Also, SkyGuy introduces the three other main types of galaxies.
Special thanks to Amy Gahran for editing a great script and making it fun!
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Archive for the ‘Galaxies’ category
Why Are Galaxies Shaped Like a Swirl?
August 29th, 2008
How Many Galaxies Are There?
June 4th, 2008
Scientists know about a lot of galaxies. How many? And how many are there really? SkyGuy answers this mind-blowing question!