In 2006, IDW announced that Calero would be one of the cover artists on its six-issue Star Trek: The Next Generation TV tie-in miniseries The Space Between, scheduled for 2007.
In 2006, IDW revealed that Calero would be contributing to the cover art of their six-issue Star Trek: The Next Generation TV tie-in miniseries, "The Space Between," which was slated for release in 2007.