Live coverage of the New Horizons spacecraft’s flyby of 2014 MU69 — also known as Ultima Thule — in the Kuiper Belt a billion miles beyond Pluto. Text updates will appear automatically below. Follow us on Twitter.
Loaded with three commercial satellites, a European Ariane 5 rocket returned to its launch pad in French Guiana Thursday after a two-week launch delay to resolve a technical issue that forced an abort to a countdown July 31. Arianespace says the mission has been rescheduled for launch Saturday due to unfavorable upper level winds in the forecast for Friday.