The last time human beings were far enough away from Earth to see the entire planet at once was December 7, 1972. That’s when the crew of Apollo 17 captured this photograph, which we now call “The Blue Marble.” For obvious reasons, today’s celebration of #EarthDay is one of the most meaningful days of the year for our team. We look forward to another year of searching for and sharing these vast perspectives with you -- to inspire the powerful awe that comes when you experience the Overview Effect. We continue to believe that if we can wonder in these view more often, we’ll do what’s right and what’s necessary to protect our one and only home.

Source imagery: NASA - National Aeronautics and Space Administration

Naval Outlying Field Spencer is a military airport roughly two miles northeast of Pace, Florida, in Santa Rosa County. Centered on 640 acres, its eight equally-sized runways form two overlapping squares: one with corners pointing North, South, East and West, and another that is rotated 45 degrees.

30°37'28.8"N, 87°08'23.1"W

Source imagery: Nearmap

Budapest is the capital of and most populous city in Hungary, as well as one of the largest cities in the European Union. It is home to more than 1,750,000 people and the birthplace of Ernő Rubik, inventor of the Rubik’s Cube. The Danube River enters Budapest from the north and encircles several islands, including Margaret Island, which can be seen at the top of this Overview.

47°31'07.2"N, 19°03'14.9"E

Source imagery: DigitalGlobe

Check out this Overview of Aquatica, a water park in San Antonio, Texas. Constructed in 2012, Aquatica boasts several water slides, pools, a 42,000-square-foot beach area, an aviary, and its signature “Stingray Falls,” a family raft ride that runs through an underground grotto full of stingrays and tropical fish.

29°27'30.3"N, 98°41'53.3"W

Source imagery: Nearmap

Molokini is a small, uninhabited islet located between the Hawaiian Islands of Maui and Kahoolawe. It is formed by a crescent-shaped, partially submerged volcanic crater roughly 0.4 miles (0.6 km) in diameter. A lush reef inside the Molokini Crater is home to about 250 species of fish, making it a popular destination for scuba divers and snorkelers.

20°37'55.8"N, 156°29'46.2"W

Source imagery: DigitalGlobe

A cluster of tetrapods is seen near the High Island Reservoir in Hong Kong. These concrete structures are used to reinforce shoreline defenses and prevent coastal erosion by breaking up incoming waves. The specific shape of the tetrapod allows water to flow around rather than against the concrete and reduces displacement by interlocking.

22°21'41.0"N, 114°22'31.5"E

Source imagery: A Sense of Huber

Hundreds of boats take harbor in a bay next to Marblehead, Massachusetts, a coastal town roughly 16 miles (25km) north of Boston. With a population of about 20,000, Marblehead has roots in commercial fishing, whaling, and yachting. In fact, it is often referred to as the birthplace of the United States Navy, as many of its resident sailors played a pivotal role in the American Revolution.

42°30′00″N, 70°51′30″W

Source imagery: Nearmap

The Nile River is commonly regarded as the longest river in the world, flowing for 4,258 miles (6,853 km) over 11 countries in northeastern Africa. In this Overview, it is shown flowing north through Egypt, forming a large triangular delta before emptying into the Mediterranean Sea. Civilizations since ancient times have depended on the waters of the Nile to flood and fertilize surrounding desert lands.

29°20'11.0”N, 31°13'28.8"E

Source imagery: NASA - National Aeronautics and Space Administration

The Lop Nur Potash Ponds are located in the Taklamakan Desert of northern China. Potash, a form of potassium salt, is a major nutrient for plant growth and a key ingredient in fertilizers. The bright colors seen in this Overview occur because the water is dyed blue to absorb more sunlight and heat, thereby reducing the amount of time it takes for water to evaporate and the potash to crystallize.

40°25'04.7"N, 90°47'42.9"E

Source imagery: DigitalGlobe

The charred body of an airplane sits on the grounds of the Salt Lake City Aircraft Rescue Fire Fighter Training Center, just outside of the city’s international airport. Opened in 1997, this facility was the first training center of its kind in the Western United States. However, due to its age and cost of maintenance, the center is expected to close this June.

40°48'20.8"N, 111°59'17.9"W

Source imagery: DigitalGlobe

Colorful narrowboats are docked at Wigrams Turn Marina in Warwickshire County, England. These boats can be quite long, but are no more than 7 feet (2.13 meters) wide, allowing them to navigate narrow British canals. Thanks to restoration projects, much of England's 18th century canal system remains navigable today, used mostly for leisure boating.

52°15'26.4"N, 1°18'54.4"W

Source imagery: Abstract Aerial Art

Two pandas are formed by solar panels at the Panda Green Energy power plant in Datong, Shanxi Province, northern China. Built in cooperation with the United Nations Development Program, this solar farm covers roughly 1,500 acres and includes an education center that teaches children about sustainable and renewable energy.

39°58'23.6"N, 113°29'03.7"E

Source imagery: DigitalGlobe