The engines of the International Space Station's Zvezda service module fired at 1:06 p.m. EST Wednesday for a 2-minute, 22-second reboost of the station. This was the second of three planned reboosts that will put the complex at the ideal altitude for the arrival of Discovery and the ISS Progress 32 cargo craft in February.

The toilet in the Zvezda Service Module was working again after a malfunction early Wednesday sent the crew off on troubleshooting procedures. Flight Engineer Yury Lonchakov replaced a gas separator and checked other plumbing elements. The new Waste and Hygiene Compartment in the Destiny laboratory would have served as a backup if the toilet had continued to malfunction.

NASA Headquarters will welcome the astronauts of the STS-126 space shuttle mission on Thursday, Jan. 22, at 10 a.m. EST. The crew completed a 16-day flight on Nov. 30 and delivered equipment to the International Space Station that will allow the outpost to house up to six astronauts for long-duration stays.

The astronauts will share the mission's highlights with NASA employees, their families and journalists at NASA Headquarters' James E. Webb Memorial Auditorium, 300 E. Street, S.W., in Washington. The crew's presentation will air live on NASA Television's public and education channels. The astronauts will be available for media interviews following the presentation. Interested reporters should call 202-358-1100 before 5 p.m. on Tuesday, Jan. 20, to confirm an interview time.

NASA will hold a media briefing Thursday, Jan. 22, at 1 p.m. CST, with the next resident crew of the International Space Station.

The briefing will originate from NASA's Johnson Space Center in Houston and be broadcast live on NASA Television and the agency's Web site. Questions will be taken from reporters at participating NASA locations.

The briefing participants are:
- Expedition 19 Commander and Russian cosmonaut Gennady Padalka
- Expedition 19 Flight Engineer and NASA astronaut Michael Barratt
- Expedition 19 Flight Engineer and NASA astronaut Timothy Kopra

On March 25, Padalka, Barratt and U.S. spaceflight participant Charles Simonyi will launch to the station aboard a Russian Soyuz spacecraft. Simonyi will return to Earth with Expedition 18 Commander Michael Fincke and Flight Engineer Yury Lonchakov April 5 in a Soyuz following a handover period.