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The "Copernican revolution," placing the sun instead of the Earth at the center of the universe, is considered "the" scientific revolution and marked the starting point of modern astronomy and cosmology (read more)

Featured Article: Galapagos Islands

Orthographic projection centred over the Galápagos.
The Galápagos Islands (Spanish names: Islas de Colónumio or Islas Galápagos, from galápago, "saddle"- after the shells of saddlebacked Galápagos tortoises) are an archipelago made up of 13 main volcanic islands, six smaller islands, and 107 rocks and islets. The oldest island is thought to have formed between five and ten million years ago, a result of tectonic activity. The youngest islands, Isabela and Fernandina, are still being formed, with the most recent volcanic eruption in 2005.

The Galápagos archipelago is part of Ecuador, a country in northwestern South America that claimed it in 1832.

The islands are distributed around the equator, about 600 miles (965 km) west of Ecuador. They were recently found to have three volcanoes in the center island, all of them active. The archipelago is famed for its great number of endemic species, especially of birds (28), reptiles (19), and fish, and for the studies by Charles Darwin that led to his theory of evolution by natural selection.

Popular Article: Ecology

The Earth seen from Apollo 17
Ecology or ecological science, is the scientific study of the distribution and abundance of living organisms and how these properties are affected by interactions between the organisms and their environment. The environment of an organism includes both the physical properties, which can be described as the sum of local abiotic factors like climate and geology, as well as the other organisms that share its habitat.

Ecology may be more simply defined as the relationship between living organisms and their abiotic and biotic environment or as "the study of the structure and function of nature" (Odum 1971). In this later case, structure includes the distribution patterns and abundance of organisms, and function includes the interactions of populations, including competition, predation, symbiosis, and nutrient and energy cycles.