https://www.vice.com/en_us/article/7k895y/nasa-spacecraft-sent-to-unexplored-orbit-for-moon-outpost-goes-silent

Humans are going back to the Moon, but not everything is going according to plan. NASA announced on Tuesday that a small spacecraft launched last month to an unexplored orbit as a test for a future lunar outpost has gone silent.

CAPSTONE is a microwave-sized satellite that was launched from New Zealand on June 6, destined to become the first spacecraft to explore the near rectilinear halo orbit (NRHO), which is an odd elongated orbit around the Moon. The orbit has significance for the Artemis program—NASA's project to return humans to the moon's surface this decade. Astronauts will be staying on the lunar surface for weeks at a time (not merely days) and so NASA wants to establish a Gateway as a kind of orbital waystation for missions. NRHO is a perfect location for such a base.