April 18, 2014

The chart compares the planets in our solar system with Kepler 186, a five-planet system 500 light-years from Earth in the direction of the Cygnus group. The five planets orbit Kepler 186 - an M-type dwarf, a star about half the size and mass of the Sun. Figure: NASA Ames Center, ST Institute, JPL-Caltech

Similar but also different: an almost twin planet to Earth orbiting a red dwarf in an orbit that allows life

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the expanding universe. Illustration: from Wikipedia

Genesis was empty - how was our universe created? – Part I

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This visualization shows a possible configuration of a power plant located on the sea and is based on design work by Jacobo Bongiorno and other researchers from the Department of Nuclear Science and Engineering at MIT. Like oil drilling rigs, the structure will include a residential area and a helipad for transportation to and from the site. Imaging, Jack Jurewitz, MIT-NSE

In the wake of Fukushima: floating nuclear power plants, capable of withstanding tsunami waves

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Sunrise, as seen from the deck of a cruise ship on the Nile. Photo: shutterstock

The damming of the Nile in Ethiopia scares the Egyptians

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