- NASA, Visible Earth (full credits at http://visibleearth.nasa.gov/view.php?id=57723) Our blue marble. Earth as seen from space. It is still the only place we have found so far that harbors life. Earth is also the only place in our solar system covered in liquid water.
- Irochka A water world. Most of the Earth is covered with water, and it is teeming with life. From fish and coral, as shown here, to the biggest mammals on the planet, the ocean is Earth's beating heart
- NASA NOAA Life has affected the Earth in many ways. In this infrared image from the Suomi NPP satellite, we see how humans have lit up our planet in this shot of the lights of North America in 2012.
- NASA Modis, TRMM In this 2010 image, we can see the effects of drought on the Amazon basin. NASA's satellites measure environmental change to understand the impact of climate change on human activity worldwide.
- Rocky Mountain Laboratories, NIAID, NIH If someone asked what kind of life dominated the planet, the answer would be mostly bacteria. These organisms, invisible to the naked eye, are the most common form of life on our planet.