[Saturday, April 2, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Saturday, April 2, 2011] Space shuttle Endeavour's STS-134 Terminal Countdown Demonstration Test (TCDT) will be held later today due to the day-long severe weather that hit Kennedy yesterday.

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[Saturday, April 2, 2011] Technicians and engineers on Launch Pad 39A at NASA's Kennedy Space Center in Florida, will begin detailed inspections of space shuttle Endeavour and its external fuel tank Saturday afternoon.

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[Saturday, April 2, 2011] NASA is inviting the public to vote for its favorite original song to wake up space shuttle Commander Mark Kelly and his five crewmates during their STS-134 mission to the International Space Station.

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[Saturday, April 2, 2011] All ISS systems continue to function nominally, except those noted previously or below. Saturday - Crew off duty.

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[Sunday, April 3, 2011] All ISS systems continue to function nominally, except those noted previously or below. Sunday - Ahead: Week 4 of Increment 27.

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[Sunday, April 3, 2011] The Tien Shan mountain range is one of the largest continuous mountain ranges in the world, extending approximately 1,550 miles (2,500 kilometers) roughly east-west across Central Asia.

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[Monday, April 4, 2011] A fish-eye lens attached to an electronic still camera was used to capture this image of the unpiloted Japan Aerospace Exploration Agency's Kounotori2 H-II Transfer Vehicle, filled with trash and unneeded items, as it departs from the ISS.

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[Monday, April 4, 2011] The Soyuz, which has been dubbed 'Gagarin,' is launching one week shy of the 50th anniversary of the launch of Yuri Gagarin from the same launch pad in Baikonur on April 12, 1961 to become the first human to fly in space.

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[Monday, April 4, 2011] Only minor damage to space shuttle Endeavour's external fuel tank foam was identified during detailed inspections Saturday by technicians and engineers on Launch Pad 39A. Evaluations indicate there was no damage to the spacecraft.

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[Monday, April 4, 2011] Following discussions among the International Space Station partners on Sunday, NASA has targeted the launch of space shuttle Endeavour's STS-134 mission for 3:47 p.m. EDT on Friday, April 29.

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[Monday, April 4, 2011] One week shy of the 50th anniversary of the first human spaceflight, NASA astronaut Ron Garan and Russian cosmonauts Andrey Borisenko and Alexander Samokutyaev launched to the ISS from the Baikonur Cosmodrome in Kazakhstan.

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[Monday, April 4, 2011] All ISS systems continue to function nominally, except those noted previously or below. Underway: Week 4 of Increment 27.

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[Tuesday, April 5, 2011] By elevating its life and physical sciences research program, NASA could achieve the biological understanding and technical breakthroughs needed to allow humans to be sent deeper into space, including to Mars, says a new NRC report.

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[Tuesday, April 5, 2011] Today, Elon Musk, CEO and chief rocket designer of Space Exploration Technologies (SpaceX) unveiled the dramatic final specifications and launch date for the Falcon Heavy, the world's largest rocket.

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[Tuesday, April 5, 2011] Tracking data now indicates that a piece of orbital debris being monitored by Mission Control will not pass close enough to the International Space Station to warrant the Expedition 27 crew members taking safe haven within their Soyuz TMA-20 spacecraft.

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[Tuesday, April 5, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Tuesday, April 5, 2011] NASA has announced three winners in the Spaced Out Sports competition, which challenged U.S. students in fifth through eighth grades to create games for astronauts to play aboard the International Space Station.

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[Tuesday, April 5, 2011] Engineers will meet today to review all data collected following severe storms that hit NASA's Kennedy Space Center last week, causing minor damage to space shuttle Endeavour's external tank foam insulation. The spacecraft was not damaged.

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[Wednesday, April 6, 2011] Engineers at NASA's Kennedy Space Center in Florida will continue ground support equipment evaluations at Launch Pad 39A following storms that hit the area late last week.

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[Thursday, April 7, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Thursday, April 7, 2011] Neighbors of NASA's Johnson Space Center in Houston may notice some loud noises coming from the 1,600-acre site in the coming weeks.

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[Thursday, April 7, 2011] At NASA Kennedy Space Center's Launch Pad 39A, crews will power up space shuttle Endeavour's payload, the Alpha Magnetic Spectrometer-2 (AMS) today in preparation for testing, which will take place over the weekend.

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[Thursday, April 7, 2011] Astronauts anticipate more trips to the moon and manned missions to Mars. But exposure to cosmic radiation outside the Earth's magnetic field could be detrimental to their arterie.

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[Friday, April 8, 2011] All ISS systems continue to function nominally, except those noted previously or below. Free day for the crew (sleep - 5:00am this morning, wake - 2:00am tomorrow, returning to regular).

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[Friday, April 8, 2011] All six crew members will begin standard crew handover and station familiarization activities and transfer cargo from the Soyuz TMA-21. The crew also will resume normal science and maintenance tas

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[Friday, April 8, 2011] NASA is hereby submitting a revised shutdown plan in the event of a lapse in appropriations, replacing the plan submitted to OMB on December 16, 1995. In this plan, NASA continues to require each NASA Center to provide protection of life and property.

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[Friday, April 8, 2011] All ISS systems continue to function nominally, except those noted previously or below. First full day of the entire Exp-27 crew complement:

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[Saturday, April 9, 2011] All ISS systems continue to function nominally, except those noted previously or below. Saturday - Crew rest day.

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[Monday, April 11, 2011] All ISS systems continue to function nominally, except those noted previously or below. Sunday - Ahead: Week 5 of Increment 27.

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[Monday, April 11, 2011] Technicians at NASA Kennedy Space Center's Launch Pad 39A completed final testing of the Alpha Magnetic Spectrometer-2 (AMS) Friday evening.

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[Monday, April 11, 2011] The International Space Station partner agencies will commemorate the golden anniversary of human spaceflight and 30 years of space shuttle flights on Tuesday, April 12.

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[Monday, April 11, 2011] Join Challenger Center for Space Science Education on Tuesday, April 26th, 2011, 1:00pm (Eastern Time), for a live interactive webcast with former NASA astronaut and Associate Administrator, William F. Readdy.

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[Monday, April 11, 2011] Our work indicates that NASA's assessments appear to be supported by sufficient, accurate and relevant underlying data.

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[Monday, April 11, 2011] NASA Administrator Charles Bolden will participate in a ceremony at the Kennedy Space Center, Fla., on Tuesday, April 12 on the 30th anniversary of the first space shuttle launch.

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[Tuesday, April 12, 2011] All ISS systems continue to function nominally, except those noted previously or below. Underway: Week 5 of Increment 27.

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[Tuesday, April 12, 2011] It was on 12 April 1961 when the Russian cosmonaut Yuri Gagarin became the first human to travel into outer space, orbiting the Earth on Vostok-1 in a flight lasting 108 minutes.

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[Tuesday, April 12, 2011] An annual International Day of Human Space Flight was declared by the General Assembly this afternoon, to be celebrated on 12 April, the date of the first manned space flight in 1961.

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[Tuesday, April 12, 2011] After 30 years of spaceflight, more than 130 missions, and numerous science and technology firsts, NASA's space shuttle fleet will retire and be on display at institutions across the country to inspire the next generation of explorers and engineers.

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[Wednesday, April 13, 2011] All ISS systems continue to function nominally, except those noted previously or below. The crew had a full holiday, with a large number of PAO downlinks via radio and TV.

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[Wednesday, April 13, 2011] The Commercial Spaceflight Federation is pleased to announce that Rear Admiral Craig E. Steidle (U.S. Navy, Ret.) has been named as President, effective May 15.

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[Wednesday, April 13, 2011] NASA managers will hold a news conference on Tuesday, April 19, at the agency's Kennedy Space Center in Florida to discuss the status of the next space shuttle launch.

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[Wednesday, April 13, 2011] Shuttle managers have officially added an additional day to space shuttle Endeavour's STS-134 mission making it a 15-day flight.

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[Wednesday, April 13, 2011] A joint effort is combining sophisticated engineering analysis on the ground with old-fashioned hands-on work in space after ESA astronaut Paolo Nespoli undertook the complex installation of a replacement water valve in ESA's Columbus science laboratory.

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[Thursday, April 14, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Thursday, April 14, 2011] The National Space Biomedical Research Institute (NSBRI) is soliciting applications for its Postdoctoral Fellowship Program. The two-year fellowships are available in any U.S. laboratory carrying out space-related biomedical or biotechnological research.

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[Thursday, April 14, 2011] The Flight Readiness Review for Endeavour's flight to the International Space Station will be held on Tuesday, April 19. NASA managers will announce the official launch date during a briefing at the conclusion of the meeting.

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[Thursday, April 14, 2011] Some of the Pharmaceuticals intended for the treatment of minor illnesses of astronauts in space may require special packaging and reformulation to remain stable for long periods in the space environment.

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[Friday, April 15, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Friday, April 15, 2011] Expedition 27 crew members pose for a photo near the galley in the Zvezda Service Module of the International Space Station in honor of the 50th anniversary of the spaceflight of Yuri Gagarin, the first human launched in space on April 12, 1961.

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[Friday, April 15, 2011] Technicians at NASA Kennedy Space Center's Launch Pad 39A will continue closing out space shuttle Endeavour's aft section. Launch preparations are in work. Launch countdown preparations are in work.

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[Saturday, April 16, 2011] Space shuttle managers have decided to keep shuttle Endeavour's STS-134 mission as a 14-day flight and possibly extend the mission as many as two days while Endeavour is in space.

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[Sunday, April 17, 2011] All ISS systems continue to function nominally, except those noted previously or below. Saturday - Crew rest day.

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[Sunday, April 17, 2011] United Space Alliance announced today tha the company will implement a major workforce reduction in late July and early August due to the completion of tasks related to day-to-day operations of the Shuttle fleet.

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[Sunday, April 17, 2011] We can find no logical explanation for this decision, and request that you explain the rationale behind the decision to Congress, the people of Houston, and the American taxpayer.

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[Sunday, April 17, 2011] All ISS systems continue to function nominally, except those noted previously or below. Sunday - Ahead: Week 6 of Increment 27.

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[Monday, April 18, 2011] NASA will host a media teleconference at 4:30 p.m. EDT on Monday, April 18, to announce awards for the second round of the Commercial Crew Development (CCDev2) effort.

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[Monday, April 18, 2011] Technicians at NASA Kennedy Space Center's Launch Pad 39A will continue preparations for space shuttle Endeavour's launch countdown. Tonight, teams will install the final ordinances needed for liftoff.

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[Monday, April 18, 2011] NASA Flight Directors Gary Horlacher of Chesterton, Ind., and Derek Hassmann of San Antonio are available for live satellite interviews from 6 to 7 a.m. CDT on Friday, April 22.

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[Monday, April 18, 2011] Each company will receive between $22 million and $92.3 million to advance commercial crew space transportation system concepts and mature the design and development of elements of their systems, such as launch vehicles and spacecraft.

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[Monday, April 18, 2011] All ISS systems continue to function nominally, except those noted previously or below. Underway: Week 6 of Increment 27.

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[Tuesday, April 19, 2011] NASA managers are meeting at NASA's Kennedy Space Center in Florida today to discuss all aspects of the STS-134 mission and will officially set the date for space shuttle Endeavour's final scheduled launch.

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[Tuesday, April 19, 2011] Space shuttle Commander Mark Kelly and his five crewmates are scheduled to begin a 14-day mission to the International Space Station with a launch at 3:47 p.m. EDT on Friday, April 29.

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[Wednesday, April 20, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Wednesday, April 20, 2011] NASA has awarded Space Exploration Technologies (SpaceX) $75 million to develop a revolutionary launch escape system that will enable the company's Dragon spacecraft to carry astronauts.

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[Wednesday, April 20, 2011] News conferences, events and operating hours for the news center at NASA's Kennedy Space Center, Fla., are set for the final scheduled launch of space shuttle Endeavour.

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[Wednesday, April 20, 2011] Yesterday, NASA managers announced that space shuttle Endeavour is ready to launch next week on its final flight to the International Space Station following a daylong Flight Readiness Review.

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[Thursday, April 21, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Thursday, April 21, 2011] Challenger Center, the nation's premier provider of science education inspiration, is marking its 25th anniversary with the launch of its "Challenger Changed My Life" program to highlight its life-transforming benefits for students.

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[Thursday, April 21, 2011] Technicians on Kennedy's Launch Pad 39A wrap up pressurization of space shuttle Endeavour's Orbital Maneuvering System, Reaction Control System, Main Propulsion System and shuttle main engines today

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[Thursday, April 21, 2011] Elektron Failure: RSC-Energia reported this morning that the Elektron oxygen generator failed yesterday when reactivated after the REGUL-OS repair activities.

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[Saturday, April 23, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Sunday, April 24, 2011] All ISS systems continue to function nominally, except those noted previously or below. Saturday - Crew half-duty day.

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[Monday, April 25, 2011] Russian cosmonaut Alexander Samokutyaev, Expedition 27 flight engineer, wearing in a work apron, is pictured in the Unity node of the International Space Station.

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[Monday, April 25, 2011] All ISS systems continue to function nominally, except those noted previously or below. Easter Sunday - Crew off duty. Ahead: Week 7 of Increment 27.

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[Monday, April 25, 2011] Bassas da India is featured in this image photographed by an Expedition 27 crew member on the International Space Station. The vantage point of crew members onboard the space station provides many dramatic views of Earth's surface.

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[Monday, April 25, 2011] Teams at NASA's Kennedy Space Center have begun preparations for space shuttle Endeavour's launch countdown which will begin tomorrow at 2 p.m. EDT.

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[Tuesday, April 26, 2011] All ISS systems continue to function nominally, except those noted previously or below. Underway: Week 6 of Increment 27.

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[Tuesday, April 26, 2011] At today's NASA pre-countdown briefing NASA Test Director Jeremy Graeber said that there currently is no technical issues while a potential severe thunder storm coming through Thursday is the only issue at this time that could delay the shuttle launch.

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[Tuesday, April 26, 2011] The six astronauts for space shuttle Endeavour's STS-134 mission to the International Space Station now are at NASA's Kennedy Space Center in Florida for their prelaunch preparations.

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[Tuesday, April 26, 2011] At today's pre-launch countdown status briefing held at NASA's Kennedy Space Center in Florida, managers reported space shuttle Endeavour, its payload and crew are ready for launch at 3:47 p.m. EDT Friday.

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[Wednesday, April 27, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Wednesday, April 27, 2011] When Space Shuttle Endeavour makes its final trip into space it will be under the watchful eye of a high altitude balloon built and flown by students and volunteers from across the U.S.

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[Wednesday, April 27, 2011] The Space Shuttle Program Mission Management Team voted unanimously to proceed toward Endeavour's scheduled liftoff at 3:47 p.m. EDT Friday.

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[Wednesday, April 27, 2011] NASA invited 150 lucky people to a behind-the-scenes perspective from the press site at the agency's Kennedy Space Center in Florida for the final launch of space shuttle Endeavour on Friday, April 29. The launch is scheduled for 3:47 p.m. EDT.

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[Wednesday, April 27, 2011] The Multilateral Coordination Board (MCB) for the International Space Station partner agencies met Wednesday, April 27, to discuss increased efforts to use the station as a test-bed for exploration.

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[Wednesday, April 27, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Wednesday, April 27, 2011] In addition to astronauts, Endeavour will carry a legion of microscopic passengers in the Planetary Society's Shuttle LIFE experiment when the space shuttle launches on its last flight on April 29.

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[Thursday, April 28, 2011] Three prototype Cornell-developed, fingernail-sized satellites -- collecting the solar wind's chemistry, radiation and particle-impact data -- will be mounted on the International Space Station.

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[Thursday, April 28, 2011] NASA astronaut Ron Garan, Expedition 27 flight engineer, equipped with a bungee harness, exercises on the Combined Operational Load Bearing External Resistance Treadmill (COLBERT) in the Tranquility node of the International Space Station.

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[Friday, April 29, 2011] Teams at NASA Kennedy Space Center's Launch Pad 39A now expect to begin moving the rotating service structure away from space shuttle Endeavour at 11:45 p.m. EDT, which still would support a launch attempt tomorrow at 3:47 p.m. EDT.

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[Friday, April 29, 2011] All ISS systems continue to function nominally, except those noted previously or below.

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[Friday, April 29, 2011] The workshop purpose is to introduce the Commercial Crew Program's requirement set and to discuss the key features of each of the documents.

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[Friday, April 29, 2011] The Orbital Maneuvering System (OMS) crossfeed valve procedure worked to alleviate the right OMS pressure issue. Both left and right tanks are balanced and are below pressure limits and there are no technical concerns for today's launch.

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[Friday, April 29, 2011] NASA has scrubbed the launch of the Space Shuttle Endeavour at least 72 hours due to a failure in one of two heater circuits. Endeavour's launch will be no earlier than Monday at 2:33 p.m. EDT.

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[Friday, April 29, 2011] At the post-scrub press briefing NASA launch director Mike Leinbach said they called the scrub at 12:15 pm EDT and that they will work through the issue this weekend and have set Monday as the next earliest launch attempt.

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