Aboard the International Space Station Tuesday, the Expedition 19 crew prepared for its upcoming spacewalk and awaited the arrival of three additional crew members later this week. The space travelers also continued their regular science and maintenance activities.

Commander Gennady Padalka and Flight Engineer Michael Barratt performed height adjustments on their Russian Orlan spacesuits in preparation for their first spacewalk, slated for June 5. In addition, they checked the suits for leaks and proper valve operation, as well as configuring and checking out the suits' communication equipment.

The Expedition 19 crew aboard the International Space Station sent special greetings to their shuttle counterparts Wednesday as they both orbited high above the Earth, and began drinking water from the station's new recycling system.

Commander Gennady Padalka and flight engineers Koichi Wakata and Michael Barratt had some time set aside to participate in a special ship-to-ship call with the STS-125 crew aboard space shuttle Atlantis. The crews exchanged greetings and sent congratulations, wishing each other farewell as it concluded. The event was broadcast live on NASA Television.

The STS-125 crew, having completed the servicing of the Hubble Space Telescope, is scheduled to land at Kennedy Space Center in Florida on Friday.

The three Expedition 19 crew members of the International Space Station focused their attention Tuesday on science, station maintenance and preparations for the arrival of space shuttle Endeavour in June.

Flight Engineer Koichi Wakata spent much of his day working with the Japanese Experiment Module's robotic arm, supporting robotic activities required prior to the STS-127 shuttle mission. Wakata maneuvered the arm into a position to view the Special Purpose Dextrous Manipulator, or Dextre.

Meanwhile, Flight Engineer Mike Barratt packed up equipment for return on STS-127. Barratt also processed water samples with the Water Microbiology Kit, which consists of all hardware and consumables needed to process a sample for a bacterial count.

A new Progress cargo carrier docked to the Pirs docking compartment of the International Space Station at 3:24 p.m. EDT Tuesday with more than 2 ½ tons of food, fuel and supplies. The Progress linked up to Pirs as it and the ISS flew 220 miles over the Mongolian-Chinese border.

The ISS Progress 33 launched from the Baikonur Cosmodrome in Kazakhstan on Thursday at 2:37 p.m. It replaces the Progress 32 which undocked from the station May 6. Filled with trash and other discarded items, Progress 32 will be deorbited over the Pacific Ocean on May 18. Prior to deorbit, ground controllers will perform a series of engine firings and study their effect on plasma in the Earth's atmosphere.

[img]http://www.nasa.gov/images/content/160328main_station_051109.jpg[/img] Image above: Expedition 19 Flight Engineer Koichi Wakata looks through a window in the Kibo laboratory of the International Space Station. Credit: NASA The new ISS Progress 33 cargo craft is en route to the International Space Station following its launch Thursday at 2:37 p.m. EDT from the Baikonur Cosmodrome in Kazakhstan. Two rendezvous burns on Friday fine-tuned its scheduled arrival to the station's Pirs docking compartment on Tuesday at 3:23 p.m. The unpiloted resupply ship is carrying more than 2 ½ tons of food, fuel and supplies.

The ISS Progress 32 (P32) undocked Wednesday at 11:18 a.m. EDT. Filled with trash and other discarded items, the P32 will burn over the Pacific Ocean on May 18. Prior to deorbit, ground controllers will perform a series of engine firings and study their effect on plasma in the Earth's atmosphere. The P32 arrived at the station on Feb 13.

On Thursday, the new ISS Progress 33 (P33) will launch from Baikonur Cosmodrome in Kazakhstan at 2:37 p.m. The P33 is delivering food, fuel, oxygen, supplies and hardware. Docking will take place at 3:23 p.m. Tuesday at the Pirs docking compartment.

Meanwhile, Flight Engineer Michael Barratt of the Expedition 19 crew spent time Wednesday with the Space Acceleration Measurement System (SAMS) experiment. SAMS is an ongoing study of the vibrations and on the station that result from the operation of hardware, crew activities, dockings and maneuvering. The results will be used to better understand the types of vibrations affecting vibration-sensitive experiments.

The International Space Station is set to take out the garbage after Expedition 19 Commander Gennady Padalka closed the hatch on a trash-filled ISS Progress 32 (P32) cargo craft. The P32 will undock Wednesday at 11:18 a.m. EDT and burn up over the Pacific Ocean 12 days later. Prior to deorbit, ground controllers will perform a series of engine firings and study their effect on plasma in the Earth's atmosphere.

Before closing the hatch, Padalka removed lights from the P32, stowed them in the station and updated the Inventory Management System. The cosmonaut also replaced a laptop computer in the Russian segment of the orbiting laboratory.

The International Space Station's Expedition 19 crew worked with experiments and finished loading the ISS Progress 32 spacecraft Monday.

Commander Gennady Padalka spent time copying data from the EXPOSE-R experiment package. EXPOSE-R is mounted to the station's exterior and contains experiments that are designed to expose material samples to the extreme ultraviolet radiation of space.

Flight Engineer Michael Barratt checked out the camera used in the Binodal Colloidal Aggregation Test - 4. In this experiment, also known as BCAT-4, station crew members photograph samples of polymer and colloidal particles as they change from liquids to gases, to model that phase change. The results will help scientists develop fundamental physics concepts previously cloaked by the effects of gravity.

The Expedition 19 crew aboard the orbiting International Space Station worked on science and prepared for the imminent undocking of the ISS Progress 32 spacecraft.

Flight Engineer Michael Barratt worked with the Smoke Point In Co-flow Experiment, also known as SPICE. This experiment determines the point at which gas-jet flames similar to a butane-lighter flame begin to emit soot in microgravity. Studying a soot-emitting flame is important in understanding the ability of fires to spread and in control of soot in practical combustion systems.

Flight Engineer Koichi Wakata collected samples with the Microbial Air Sampler Kit that will be used to detect microorganisms such as bacteria and fungi in the air aboard the space station. These samples are evaluated to ensure that the air quality is safe for crew members.

[img]http://www.nasa.gov/images/content/160328main_iss019e009806.jpg[/img] Image above: Expedition 19 Flight Engineer Koichi Wakata squeezes honey out of a tube near the galley in the Zvezda service module of the International Space Station. Credit: NASA Tuesday proved to be a busy day for the three full-time residents aboard the International Space Station, as the Expedition 19 crew stowed tools and performed scientific experiments. Flight Engineer Mike Barratt began his day logging data for a study of crew sleep patterns and light exposure. Barratt is wearing a small wristwatch-like device that will measure light levels and record his patterns of sleep and activity throughout the week.