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Science

(41,673 posts)

3. Saturn also has density less than water ... this is because it is a "gas giant" ...

Sun Jan 10, 2016, 07:09 PM

Jan 2016

with plenty of low-molecular weight volatiles in its atmosphere.

Mean density
0.687 g/cm3[4][a]
(less than water)

https://en.wikipedia.org/wiki/Saturn

Amazingly, no radical new theories are needed to explain this.

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Puffy Planet [View all] DhhD Jan 2016 OP

More Puffy Planets Discovered DhhD Jan 2016 #1

Hoo boy ... enjoy your stay. nt eppur_se_muova Jan 2016 #5

I was waiting for a 'puffy shirt' Sienfeld joke in this thread Ichingcarpenter Jan 2016 #6

Pulling off a Moon might make a planet more puffy. no text DhhD Jan 2016 #7

So, if the universe is expanding... DetlefK Jan 2016 #8

Has Earth been here one third of the Time? Not insignificant. DhhD Jan 2016 #9

Do you actually know how expansion works? DetlefK Jan 2016 #10