Delta 4 launch seen from press viewing site (members only)

Prognosticators are predicting favorable weather conditions to launch an Atlas 5 rocket Thursday and send NASA’s OSIRIS-REx spacecraft on its interplanetary journey to interrogate an asteroid and collect a surface sample for return to Earth.

United Launch Alliance crews at Cape Canaveral are finishing final preparations for an Atlas 5 rocket launch Saturday evening to dispatch three U.S. military satellites directly to an orbital perch more than 20,000 miles over the equator.

A United Launch Alliance Delta 4 rocket will deliver the U.S. Air Force’s tenth Wideband Global SATCOM communications satellite to a supersynchronous transfer orbit around 37 minutes after lifting off from Cape Canaveral.