Dr. Simonyi is currently on his second trip to space, which is the seventh civilian trip brokered by US company
Space Adventures![](/images/icons/who)
. However, it will be the last for civilian space explorers for the foreseeable future. Due to expansion of the
International Space Station![](/images/icons/term)
(
ISS![](/images/icons/term)
) crew from three to six starting in April, there will be no extra seats aboard the Soyuz capsules for non-professional space travelers.