The user creates an account. Their password is hashed and stored in the database. At no point is the plain-text (unencrypted) password ever written to the hard drive. When the user attempts to login, the hash of the password they entered is checked against the hash of their real password (retrieved from the database).
List of International Space Station expeditions. This is a chronological list of expeditions to the International Space Station (ISS). All permanent ISS crews are named Expedition n, where n is sequentially increased with each expedition. Resupply mission crews and space tourists are excluded (see List of human spaceflights to the ISS for details). ISS commanders are listed in italics.
As of September 2014 two space stations are in orbit: the International Space Station, which is permanently manned, and China's Tiangong-1 (which successfully launched on September 29, 2011), which is unmanned most of the time.Previous stations include the Almaz and Salyut series, Skylab and most recently Mir.he core module of the International Space Station was launched in 1998. The ISS is divided into two main sections, the Russian orbital segment (ROS), and the United States operational segment (USOS). USOS modules were brought to the station by the Space Shuttle and manually attached to the ISS by crews during EVAs.