picks NASA's Juno is about to reach Jupiter after a 5-year journey. I visited JPL before the big show. Katherine Leipper
makers That UFO shot down over Alaska likely belonged to a group of amateur radio balloon hobbyists David Pescovitz
Space Engineers fixed Voyager space probe's mysterious glitch but found another that's even stranger David Pescovitz
Space Listen to audio recorded on Mars, where the speed of sound is slower than on Earth David Pescovitz
Science Later this month, look up to see Jupiter and Saturn appear closer together than they've been since the Middle Ages David Pescovitz
fires NASA monitors carbon monoxide from California and Oregon fires, finds 10x typical CO emissions Xeni Jardin