The new elements - elements 113, 115, 117 and 118 - complete the periodic table's seventh row and make science textbooks around the world instantly out-of-date.
Soon, scientists will decide whether the word Anthropocene should be formally added to the Geologic Time Scale. It indicates a world shaped by human beings.
Earth's night skies are lighter, thanks to towns, cities and industrial complexes. How that affects astronomy ... as well as birds, insects and people.
NASA has called off the planned March 2016 launch of the InSight mission to Mars, following failure to repair a leaky instrument in the science payload.