The spiral arms of our galaxy... are corrugated.

You see, what we didn’t know until the day before yesterday is that the spiral arms of our galaxy — weird enough already for their wobblesome braiding habits in response to who-knows-what dark invisible gravitational forces — are corrugated. The mass of stars rise up and drop down in these helical waves from our galactic centre; and from our own position, part way up one wave, the next wave was blocking our view outward, and from all directions tending to omit much of the stellar flotsam in the troughs. Careful analysis now lets us see through the blockage. There’s more stars down there in the dips, as well as up and over the extra wave, and thus our galaxy turns out to be so decidedly more populous. Add another hundred billion stars, easy. Hell, add two hundred billion. Give them Obamacare.

Via American Digest