Special issue: Celebrating ten years since Snowmass (and ten years of NewsLine)

Ten years ago, scientists from all over the world gathered in the picturesque town of Snowmass in the US to constitute a new global collaboration for a future particle collider called the International Linear Collider. People who had worked on several different concepts for a linear collider reshuffled to work together on the ILC and its challenging technologies. They researched, designed, tested and improved the machine’s design and continue to do so to this day, hoping for a governmental go-ahead. However, the ILC is not the only concept for a collider to complement the LHC at CERN. What has happened in these ten years, and where does the project stand today?