https://phys.org/news/2018-12-private-israeli-lunar-mission-february.html

SpaceIL said it had no control over the launch's delay, and that SpaceX, the private space exploration company founded by entrepreneur Elon Musk, notified them that its rocket will now lift off in February 2019 without providing an explanation.

Israel Aerospace Industries manager Opher Doron stressed that the small craft, roughly the size of a washing machine, faces a "difficult, arduous journey" because it will have to make several orbits before touching down on the moon. Upon landing, the craft is to relay photographs and collect data about the moon's ever-changing magnetism for research by Israel's Weizmann Institute and NASA.