“The SpaceX Falcon 9 rocket lifted off on June 3 from Launch Pad 39A at the Kennedy Space Center, Florida, carrying the uncrewed Dragon cargo ship to orbit for the start of a delivery run to the residents of the International Space Station. Loaded with about 6,000 pounds of supplies and science experiments, Dragon is scheduled to arrive at the station on June 5, where it will be captured by Expedition 52 Flight Engineer Jack Fischer of NASA using the station’s Canadian-built robotic arm. Dragon is scheduled to remain at the station for a month before it is unberthed and deorbited for a parachute-assisted splashdown in the Pacific Ocean.”
“Expedition 51 Flight Engineer and Soyuz Commander Oleg Novitskiy of the Russian Federal Space Agency (Roscosmos) and Flight Engineer Thomas Pesquet of ESA (European Space Agency) landed safely near the town of Dzhezkazgan, Kazakhstan June 2 after bidding farewell to their colleagues on the International Space Station and undocking their Soyuz MS-03 spacecraft from the Rassvet Module on the Russian segment of the complex. The two crew members spent 196 days in space overall and 194 days on the station conducting research and operational work.”
“Outside the International Space Station, Expedition 51 Commander Peggy Whitson and Flight Engineer Jack Fischer of NASA conducted a spacewalk May 12 to replace an avionics box responsible for routing power and data commands to experiments on the orbital outpost. In addition to that work, the two spacewalkers installed a data cable for the Alpha Magnetic Spectrometer and a new high definition camera on the station’s truss. The spacewalk was the 200th in support of space station assembly and maintenance since 1998, the ninth for Whitson, who vaulted into third place on the all-time list for most spacewalking hours, and the first for Fischer.”
“The Bigelow Expandable Activity Module (BEAM) is an experimental expandable space station module developed by Bigelow Aerospace, under contract to NASA, for testing as a temporary module on the International Space Station (ISS) from 2016 to 2018. It arrived at the ISS on April 10, 2016, was berthed to the station on April 16, and was expanded and pressurized on May 28, 2016.
NASA originally considered the idea of inflatable habitats in the 1960s, and developed the TransHab inflatable module concept in the late 1990s. The TransHab project was cancelled by Congress in 2000, and Bigelow Aerospace purchased the rights to the patents developed by NASA to pursue private space station designs. In 2006 and 2007, Bigelow launched two demonstration modules to Earth orbit, Genesis I and Genesis II.
NASA re-initiated analysis of expandable module technology for a variety of potential missions beginning in early 2010. Various options were considered, including procurement from commercial provider Bigelow Aerospace, for providing what in 2010 was proposed to be a torus-shaped storage module for the International Space Station. One application of the toroidal BEAM design was as a centrifuge demo preceding further developments of the NASA Nautilus-X multi-mission exploration concept vehicle. In January 2011, Bigelow projected that the BEAM module could be built and made flight-ready 24 months after a build contract was secured.
On December 20, 2012, NASA awarded Bigelow Aerospace a US$17.8 million contract to construct the Bigelow Expandable Activity Module under NASA’s Advanced Exploration Systems (AES) Program. Sierra Nevada Corporation built the $2 million Common Berthing Mechanism under a 16-month firm-fixed-price contract awarded in May 2013. NASA plans made public in mid-2013 called for a 2015 delivery of the module to the ISS. During a press event on March 12, 2015, at the Bigelow Aerospace facility in North Las Vegas, the completed ISS flight unit, compacted and with two Canadarm2 grapple fixtures attached, was displayed for the media.
The BEAM is an experimental program in an effort to test and validate expandable habitat technology. If BEAM performs favorably, it could lead to development of expandable habitation structures for future crews traveling in deep space. The two-year demonstration period will: demonstrate launch and deployment of a commercial inflatable module; implement folding and packaging techniques for inflatable shell; implement a venting system for inflatable shell during ascent to ISS; determine radiation protection capability of inflatable structures; demonstrate design performance of commercial inflatable structure like thermal, structural, mechanical durability, long term leak performance, etc.; demonstrate safe deployment and operation of an inflatable structure in a flight mission.
At the end of BEAM’s mission, the plan was to remove it from the ISS and burn up during reentry. On January 18, 2017, however, Bigelow and NASA announced they were discussing the possibility of extending the on-orbit life of BEAM and using it for other purposes.
BEAM is composed of two metal bulkheads, an aluminum structure, and multiple layers of soft fabric with spacing between layers, protecting an internal restraint and bladder system; it has neither windows nor internal power. The module was expanded about a month after being attached to the space station. It was inflated from its packed dimensions of 2.16 m (7.1 ft) long and 2.36 m (7.7 ft) in diameter to its pressurized dimensions of 4.01 m (13.2 ft) long and 3.23 m (10.6 ft) in diameter. The module has a mass of 1,413.0 kg (3,115.1 lb), and its interior pressure is 14.7 pounds per square inch (1 atm), the same as inside of the ISS.
BEAM’s internal dimensions provide 16 m3 (565 cu ft) of volume where a crew member will enter the module three to four times per year to collect sensor data, perform microbial surface sampling, conduct periodic change-out of the radiation area monitors, and inspect the general condition of the module. The hatch to the module will otherwise remain closed. Its interior is described as being “a large closet with padded white walls”, with various equipment and sensors attached to two central supports.”
“On April 22, hours arriving at the International Space Station, Orbital ATK’s Cygnus resupply ship was captured by Expedition 51 Flight Engineer Thomas Pesquet of the European Space Agency and Commander Peggy Whitson of NASA using the Canadarm2 robotic arm. Later, Cygnus was installed to the Earth-facing port of the Unity module where it will reside for the next three months. Cygnus is packed with 7,600 pounds of supplies and research for the crew aboard the orbiting laboratory.”
“After launching earlier in the day in their Soyuz MS-04 spacecraft from the Baikonur Cosmodrome in Kazakhstan, Expedition 51-52 Soyuz Commander Fyodor Yurchikhin of Roscosmos and Flight Engineer Jack Fischer of NASA arrived at the International Space Station April 20 to complete a six-hour journey, docking their vehicle to the Poisk module on the Russian segment of the complex.”
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