From space, the sprawling Indonesian islands of Java, Bali and Lombok appear perfectly arranged. In this majestic view, captured from 250 miles above courtesy of astronaut Ricky Arnold (@Astro_Ricky) aboard the International Space Station (@iss), the impeccably aligned islands are disconnected only by tiny passages of water called straits. The Lombok Strait, which separates Bali and Lombok, is a slice of an invisible boundary called the Wallace Line. The margin, which runs between Asia and Australia, was created by British naturalist Alfred Russel Wallace in 1859 and was drawn to separate the wildlife of Australia from the wildlife of Southeast Asia. This study of the geographical distribution of species and ecosystems is called biogeography and was formed from the work of Wallace and other biologist and explorers.
There are currently six people living on the space station. While living aboard humanity’s only permanently occupied microgravity laboratory, they will work on hundreds of experiments in biology, biotechnology, physical science and Earth science.
Credit: NASA/@Astro_Ricky
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