Air Force meteorologists are expecting good weather to launch the Delta 4 rocket with a military communications satellite Wednesday evening from Cape Canaveral.

Boeing and SpaceX hope to launch commercial crew ferry ships on long-awaited test flights later this year, but both companies face major challenges getting the spacecraft certified before late 2019 when seats aboard Russian Soyuz spacecraft will no longer be easily available for NASA space station crews, officials told lawmakers Wednesday.

A commercial robotic lander developed by the Japanese company ispace was supposed to land on the moon at 12:40 p.m. EDT (1640 UTC) Tuesday, attempting to make history as the first privately-funded enterprise to achieve a controlled touchdown on the lunar surface. But mission controllers lost contact with the spacecraft just before landing.