October 17, 2017

Humanity Was Here

Under ceaseless skies…

Photo by author.

Astronomy forces us to think big. And not just big in terms of gazillions of miles of distance, but also in terms of time. The stars in the Milky Way galaxy, for example, are swirling around the galactic core to the tune of one orbit every quarter of a billion years – but the constellations you see from you backyard tonight looked pretty much the same on the day you were born, and won’t have changed much come the day that you die. [Read more...]