60 Days of Drones, Day 1: Nano Drones

Today we begin a new series: 60 Days of Drones. For the next two months, we’ll try to cover the full gamut of drones used by the U.S. government—letting you know what you should about the unmanned aircraft patrolling the skies on behalf of the United States. In the end, we’ll have a full card deck of the drones of… » 6/29/15 12:58pm Monday 12:58pm

RIP Messenger: What the Spacecraft Taught Us About Mercury

Messenger’s fate was sealed from the beginning: When it ran out of fuel, the space probe would crash into Mercury, the planet it was sent to observe. What we didn’t expect is Messenger to last four years instead of one. After an unexpectedly long and fruitful mission, Messenger met its inevitable end today. » 4/30/15 5:05pm 4/30/15 5:05pm

NASA to Send Messenger on a Final Trip So Close to Mercury It Could Melt

Over a decade ago, NASA shot Messenger into space, and in 2011, it became the first probe to orbit around Mercury, sending back our first closeups of the planet. But all good things must come to an end, and Messenger is running out of fuel. In one last tour, Messenger will fly lower than ever over Mercury—so close… » 1/05/15 4:15pm 1/05/15 4:15pm