Monday, September 5, 2011

Saturday, September 3, 2011

The Universe Is Big

Right now, on your computer screen, are approximately 10,000 galaxies.

Each of those galaxies contains anywhere from ten million to one trillion stars.

The average star is roughly a million times the size of Earth.

And yet, with all that junk, the Universe is more than 90 percent empty space.

All of that, in this tiny photo. A photo that took 400 orbits and 800 exposures to take.

And the kicker? The photo covers one thirteen-millionth of the entire night sky.