Which of mankind’s marvels can we actually spot from the final frontier? This question calls for a little perspective. Space is big. Sure, you might be able to gaze at the Amazon River while hovering a few hundred miles above sea level. But from the moon, you could barely even make out the continents! And our whole planet looks like nothing more than a dinky blue splotch from Mars’ surface. Still, astronauts traveling in Low Earth Orbit or on board the International Space Station can see quite a bit using nothing but their naked eyes.
via Mental Floss
Image: Nicole Stott, via Universe Today
