Right now, the Earth is at its equinox. Today, the duration of the day and the night all around the world would be the same because the sunlight is hitting the Earth at the perfect angle to align its shade with Earth's spin axis. You can see it in this video, captured by the Russian satellite Elektro-L.
Unlike NASA's Blue Marble—which is a composite made from many different photographs—this is a portrait of Earth taken in one single shot. It's the highest resolution image of our home planet, 121 megapixels. That's an amazing 0.62 miles per pixel.