Groundspeak allows extraterrestrial caches, e.g. the Moon or Mars, although presently, the website provides only earthbound coordinates. The first (and so far only) published extraterrestrial geocache was GC1BE91, which was on the International Space Station between 2008 and 2017. It used the Baikonur launch area in Kazakhstan as its position. The original cache contained a travel bug (the first geocaching trackable item in space), which stayed on the station until it was brought back to earth in 2013. Due to fire restrictions onboard the station, the geocache contained no official paper logbook. As of February 2021, only one confirmed geocacher (in 2013) has actually found the geocache, although others have claimed to have found it providing varying amounts evidence. To commemorate the occasion, Groundspeak allowed specialized geocaching events to be published across the world, allowing attendees to obtain a virtual souvenir on their profile.