SpaceX’s Dragon cargo craft splashed down in the Pacific Ocean at 2:51 p.m. EDT, about 261 miles southwest of Long Beach, California, marking the end of the company’s eighth contracted cargo resupply mission to the International Space Station.
A boat will take the Dragon spacecraft to a port near Los Angeles, where some cargo will be removed and returned to NASA within 48 hours. Dragon will be prepared for a return journey to SpaceX’s test facility in McGregor, Texas, for processing. Dragon is currently the only space station resupply spacecraft able to return a significant amount of cargo to Earth at this time.
Dragon is returning more than 3,700 pounds of NASA cargo and science samples from a variety of technological and biological studies about the International Space Station. The Microchannel Diffusion study, which investigated fluids at the nanoscale, or atomic level, holds promise for a wide range of technologies. Nanofluidic sensors could measure the makeup of space station air, or be used to deliver drugs to specific places in the body, for example. This type of research is possible only on the space station, where Earth’s gravity is not strong enough to interact with sample molecules, so they behave more like they would at the nanoscale. Knowledge gleaned from the investigation may have implications for drug delivery, particle filtration and future technological applications for space exploration.
The SpaceX Dragon cargo spacecraft was released from the International Space Station’s robotic arm at 9:19 a.m. EDT. The capsule will begin a series of departure burns and maneuvers to move beyond the 656-foot (200-meter) “keep out sphere” around the station and begin its return trip to Earth. The capsule is currently scheduled to splashdown in the Pacific Ocean at 2:55 p.m., about 261 miles southwest of Long Beach, California.
The spacecraft will return the final batch of human research samples from former NASA astronaut Scott Kelly’s historic one-year mission. These samples will be analyzed for studies such as Biochemical Profile, Cardio Ox, Fluid Shifts, Microbiome, Salivary Markers and the Twins Study. Additional samples taken on the ground as Kelly continues to support these studies will provide insights relevant for the Journey to Mars as NASA learns more about how the human body adjusts to weightlessness, isolation, radiation and the stress of long-duration spaceflight.
NASA Television will provide live coverage of the departure of the SpaceX Dragon spacecraft from the International Space Station beginning at 9 a.m. EDT. Dragon was detached from the Earth-facing side of the station’s Harmony module earlier this morning. Robotics controllers will maneuver Dragon into place and Expedition 47 robotic arm operator Tim Peake of ESA (European Space Agency) will execute the command for its 9:18 a.m. release.
Dragon arrived at the space station April 10 after launching April 8 from Cape Canaveral Air Force Station in Florida carrying almost 7,000 pounds of supplies and cargo on the company’s eighth commercial resupply mission to the station.
Release of the spacecraft by the station’s robotic arm will begin the Dragon’s return to Earth carrying more than 3,700 pounds of NASA cargo and science samples from human research, biology and biotechnology studies, physical science investigations and education activities sponsored by NASA and the Center for the Advancement of Science in Space, the nonprofit organization responsible for managing research aboard the U.S. national laboratory portion of the space station.
The capsule is currently scheduled to splashdown in the Pacific Ocean about 2:55 p.m., approximately 261 miles southwest of Long Beach, California.
The SpaceX Dragon cargo ship is ending its stay tomorrow at the International Space Station. The commercial cargo craft has been packed with about 3,700 pounds of cargo, spacewalk gear and biological samples for analysis on Earth.
While the astronauts in the U.S. segment loaded Dragon, their Russian counterparts conducted research exploring diverse fields such as physics, biology and human research. They researched how space radiation affects materials that simulate human tissue for the long-running Matryeshka study. The crew also looked at how the space environment affects a crew member’s carotid artery and immune system.
The SpaceX Dragon is being packed with critical science today and tomorrow before its release and splashdown on Wednesday. The crew is also reviewing Dragon departure procedures and training for its release from the grip of the Canadarm2 robotic arm.
Dragon is currently attached to the Harmony module. After it is uninstalled early Wednesday with the 57.7 foot Canadarm2, the Dragon will be released at 9:18 a.m. EDT for a splashdown in the Pacific Ocean at 2:55 p.m. NASA TV will broadcast the release and departure activities live, however the splashdown and recovery work will not be televised.
A pair of science freezers carrying experiment samples for analysis will be removed from the space station and returned to Earth inside Dragon. The commercial space freighter is returning a variety of science and gear for NASA.
The Russian cosmonauts are relaxing today in observance of Victory Day when Germany surrendered to the Soviet Union on May 9, 1945, ending World War II. The astronauts in the U.S. segment of the station continued science work, Dragon packing and robotics training for Wednesday’s release activities.
Expedition 47 continues exploring how the lack of gravity affects astronauts and technology to help NASA plan longer missions farther out into space. Meanwhile, the Canadian Space Agency’s robotic arm, Canadarm2, has been maneuvered into position before it releases the SpaceX Dragon on Wednesday.
The crew set up the Fluid Shifts experiment again today utilizing a specialized body suit. The suit measures fluid movements between the upper and lower body. These fluid shifts have been known to increase head pressure potentially affecting a crew member’s eyesight.
Surface and air samples were taken today inside the International Space Station to study the diversity of microbes on the orbital lab. Hardware was also set up to download imagery taken for the Strata-1 study which is exploring how soil from other planetary bodies might behave. That research may help scientists design future spacesuits and space gear.
SpaceX is getting ready for the release and splashdown of its Dragon cargo craft on May 11. The 57.7-foot Canadarm2 robotic arm is inspecting Dragon’s thermal protection system and will grapple the spacecraft later today.
The astronauts onboard the International Space Station are researching how microgravity affects fluid shifts in a crew member’s body. Ground controllers are also guiding Canada’s robotic arm into position before next week’s grapple and release of the SpaceX Dragon spacecraft.
The Fluid Shifts experiment will wrap up operations this week with the crew wearing specialized body suits. The suits, known as Chibis Lower Body Negative Pressure devices, measure how fluids move from the lower body to the upper body while living in space. The research also observes fluid shifts in and out of cells and blood vessels which may impact head pressure potentially affecting vision.
Robotics controllers are remotely guiding the Canadarm2 to the Harmony module where it will grapple Dragon ahead of the spacecraft’s May 11 release and splashdown in the Pacific Ocean. Yesterday, the controllers surveyed the Alpha Magnetic Spectrometer’s condition with the Canadarm2 and its cameras.
Cosmonaut Oleg Skripochka is on his second mission aboard the space station. His first mission during Expedition 25/26 lasted 159 days. Currently, he is Expedition 47 Flight Engineer and today is his 47th day aboard the orbital lab since his March arrival with fellow crew members Jeff Williams and Alexey Ovchinin.
Today, the crew is observing how the lack of gravity affects plants and rodents. NASA is using the observations to improve the health of astronauts in space and humans on Earth.
The crew is stowing plant samples harvested for the Plant Gravity Sensing botany study to understand how roots sense gravity. The samples are being inserted into a science freezer for return to Earth aboard the SpaceX Dragon next week. Results may help astronauts grow their own food while living in space.
Rodents are also being observed in a habitat designed to house them in space. The Rodent Research-3 experiment is studying how space changes the musculoskeletal system and if an antibody that prevents muscle weakening on Earth works in space.
Dragon is still being loaded with gear and science for analysis on the ground. The private space freighter will be removed from the Harmony module and released from the Canadarm2 robotic arm for a splashdown in the Pacific Ocean May 11.
The Expedition 47 crew began May exploring botany, genetic analysis and life science. SpaceX is also getting ready for the May 11 release and splashdown of its Dragon spacecraft.
NASA astronaut Jeff Williams harvested and fixated plants grown for the Plant Gravity Sensing study. Scientists seek to understand the chemical process that guides the direction of roots and how they sense gravity. Williams is also validating the new WetLab-2 system hardware to extract RNA from a cell sample in microgravity.
British astronaut Tim Peake swapped gear on a specialized microscope that can download imagery and video to scientists on the ground. Peake also saved data collected from an armband for the Energy study then moved on to the Rodent Research study that observes muscle and bone loss in space.
Commander Tim Kopra and Williams are packing and securing cargo inside Dragon for return to Earth next week. SpaceX engineers on a ship will retrieve the Dragon in the Pacific Ocean and return it to a port in southern California. The gear and research will be returned to NASA for analysis.
The International Space Station crew is wrapping up the week after working on a series of ongoing life science and robotics studies. The SpaceX Dragon is also nearing the end of its stay and preparing for a return to Earth.
The astronauts have been helping scientists gather data on what happens to the human body when exposed to microgravity to help NASA plan longer missions farther out into space. Observations from the human research studies help doctors design exercise techniques, diets and other countermeasures to keep astronauts healthy.
British astronaut Tim Peake collected tap water and body samples for the Energy experiment today. That study is aiding doctors’ efforts to determine an astronaut’s energy requirements to improve crew health and performance. He also tested the ability of controlling a rover on Earth, or any planetary surface, from a computer on a spacecraft. The METERON experiment may benefit future missions to Mars or hazardous tasks on Earth.
Experiment samples, gear and other hardware is being packed inside the Dragon space freighter attached to the Harmony module. Dragon will be released from Harmony May 11 ending a month-long stay. After its departure it will splashdown in the Pacific Ocean a few hours later where the spacecraft and its cargo will be retrieved by SpaceX engineers.