James Webb Telescope Sun Shield Snags, Further Launch Delays Likely

A new report on the James Webb Space Telescope has found that ongoing technical issues with final testing and assembly of the $8.8 billion project will probably cause the launch date of the oft-delayed instrument to slip again to the right. Presently, NASA is targeting June 2019 for launch aboard an Ariane 5 rocket.

Source: arstechnica.com