Video: Antares rocket explodes

A commercial Cygnus supply freighter will transport a motley mix of experiments to the International Space Station, helping scientists engaged in a range of research disciplines from studying the birth of the solar system to helping astronauts survive marathon missions in space.

A day after an explosion that destroyed an Orbital Sciences Antares rocket carrying a space station cargo ship, officials said Wednesday they hope to zero in on the likely cause of the mishap within a week or so, based on a detailed review of telemetry, analysis of video and inspection of debris.

A year after a launch mishap left Orbital ATK’s Cygnus supply ship without a ride to the International Space Station, company officials say the cargo delivery system is on the verge of a comeback, thanks to deals with United Launch Alliance and a decision to redesign its Antares booster with new rocket engines.