The Whole Shebang

Environmental & Science Education, STEM, Cosmology, Astronomy, Nature of Science, History of Science

Ed Hessler

Another pleasure from Astronomy Picture of the Day (APOD) which I use as my segmented, ultra-informal course to what is out there. In one diagram is shown the observable universe, in compact scale.

The question asked is " How far can you see?" is followed by this answer "everything you can see, and everything you could possibly see, right now, assuming your eyes could detect all types of radiations around you...." (my emphasis)

No doubt this must have become a poster of some kind. If not it will with Tee shirt to follow. It looks almost like a mandala. Regardless, it is compelling and invites one to  wander about it. What a place, our observable universe is. 

Time again to acknowledge the scientists and engineers who make it possible for us to "see," providing us other tools to inform our view when we look up and out even at the invisible.