Out of This World

I walked outside this morning onto the darkened deck. A cool, steady wind was blowing and the moon and stars shone bright and clear. I thought about the worlds that exist beyond our world, about possibility and eternity. Then I walked inside to read this headline: "Galaxy may have gobs of Earth-size planets."

In a paper published in the journal Science astronomers posit that there are "tens of billions" of planets the same shape and size as Earth in the Milky Way. This conclusion is based, among other things, on measuring "the minute wobbles [I love that phrase] of stars caused by the exoplanets that orbit them." And also by a method called "transiting," which looks for reductions in light coming from the star and planets being observed. Fascinating stuff, for sure. Also fascinating is the discovery of a rocky planet in a "habitable zone" around a star close to Earth.

It's too soon to know for sure of course, but it seems increasingly likely that we are not alone in the universe.