April 22 is Earth Day, which means it's time to reflect on the beauty and wonder of our home planet. Let's all celebrate today by taking a gander at these gorgeous photos of Earth as seen from above, courtesy of NASA's online photo archives. 

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Ha ha psych. They're all oil spills. 

1. Oil Offshore of Alabama and Florida's Western Panhandle. 

2. Oil from the Deepwater Horizon spill laps around the mouth of the Mississippi River delta in this May 24, 2010, image from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument on NASA's Terra spacecraft.

3. Japan Aerospace Exploration Agency (JAXA) astronaut Soichi Noguchi, Expedition 23 flight engineer, photographed the tail end of the Mississippi Delta showing the oil slick in the Gulf of Mexico on May 4, 2010.

4. NASA's Terra satellite passed over the Gulf of Mexico and the Deepwater Horizon oil slick on May 10 at 16:35 UTC (12:35 p.m. EDT) and captured a visible image with its Moderate Imaging Spectroradiometer Instrument. The oil slick is located southeast of the Mississippi Delta and appears as a dull gray color, almost in the shape of the letter "J." 

5. Oil Spill off Unalaska Island

6. This image from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite on August 30, 2009, shows the Timor Sea and what are probably oil slicks about 250 kilometers northwest of Western Australia.