I think you'll find that that bright red cylinder was full of hydrogen...
Posts by Islander
3 publicly visible posts • joined 25 Apr 2012
Potato in SPAAAAACE: LOHAN chap cooks up stratospud with Heston Blumenthal
US Congress proposal: National Park will be FOUND ON MOON
Supernovae blasts shape climate, life on Earth, reckons boffin
Wednesday 25th April 2012 11:09 GMT

Err not only does the solar system pass through the density patterns that comprise the arms it also oscillates up and down in relation to the arms themselves. The Sun's orbit around the galactic centre takes around 250 million years and during one orbit it oscillates up and down 2.7 times. The orbit is not a regular one either as it's perturbed by local mass variations as it passes through.