Angular Diameter Turnaround

Angular Diameter Turnaround

(alt-text)

Thank you to Katie Mack for teaching me about this effect, and to Janelle Shane for describing redshifts as 'like galaxies sinking into a pool of dilute blood,' which is how I'll see them from now on.

What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions comes out 9/13. Preorder here!