I never tire of satellite images, and especially those of North Korea at night. Take a look at the latest image by astronauts aboard the International Space Station. South Korea and China are readily visible - their cities and industries lighting up the night sky. But in between.... is that an ocean?
Not an ocean in the literal sense, but perhaps in terms of an open expanse of... nothingness. Except we know millions of people live and work in North Korea. During the day a satellite image would reveal roads and cities and settlements. But at night? Darkness.
Want more? See North Korea by night from 2011 and 2012.
Props to: Image Science and Analysis Laboratory, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth."
The views expressed are those of the author(s) and are not necessarily those of Scientific American.
ABOUT THE AUTHOR(S)
David Wogan is an engineer and policy researcher who writes about energy, technology, and policy.
David's academic and professional background includes a unique blend of technology and policy in the field of energy systems. Most recently, David worked at Austin Energy, a Texas municipal utility, implementing a Department of Energy stimulus grant related to energy efficiency. Previously, David was a member of the Energy & Climate Change team at the White House Council on Environmental Quality for the Obama Administration.
David holds two Master's degrees from The University of Texas at Austin in Mechanical Engineering and Public Affairs. While at UT, David was a researcher in the Webber Energy Group, where his research focused on advanced biofuel production to offset petroleum use in the transportation sector. David holds a Bachelor's of Science degree in Mechanical Engineering from The University of Texas at Austin, where he researched nuclear non-proliferation measurement technology.
David is a 2013 Aspen Institute Journalism Scholar, joining a select group of journalists from Slate, ABC News, and The New York Times.