IMPORTANT NOTES
All information added or updated since this page first went up on May 8, 2026 is in GREEN TEXT below.
Information still to be determined (if any) is in RED TEXT below.
Dates and times that are subject to change at NASA’s discretion are in PURPLE TEXT below.
Last update of this page: June 1, 2026 10:16 AM ET
Quick Jump:
1. Introduction and Nomenclature for the Log
2. Pre-Launch Activities
3. Launch and Berthing
4. Flight Experiment Log, On-Orbit Operations: Mission 18 Surveyor Payload
5. Undocking and Landing
6. Return of Experiments to Student Teams
1. Introduction and Nomenclature for the Log
This page provides student flight experiment teams a log of all activities associated with the flight experiments comprising the SSEP Mission 19 Endeavour payload from the time the mini-laboratories are received in Houston before the flight of SpaceX CRS-34 to the point when the mini-labs are shipped back to the flight teams after return to Earth. While this page will feature general progress reports on the status of the payloads, its main purpose is to provide updates to the student flight experiment teams as quickly as possible regarding the handling of their mini-labs on the International Space Station (ISS), so that they can effectively conduct their ground truth experiments. Teams are advised to bookmark this page and check it regularly for updates.
As per the SSEP Mission 19 to ISS: Flight Operations page:
Updates to Student Teams on the Progress of Their Experiment
The ISS crew will interact with the SSEP payload at times of the day that fit best in their overall work schedule. Even though crew interactions with the experiments are to take place on pre-specified Crew Interaction Days, the time of the interaction will vary from one Crew Interaction day to the next. After the crew has completed handling of the SSEP payload a report is sent from the ISS to mission control in Houston, the report is then forwarded to Nanoracks, who will forward the report to the SSEP flight operations team at NCESSE. We will then post the details of the report – including the time at which the payload was handled – on this page to make the information available to all student teams as quickly as possible. The report will be posted as soon as it is received, but it may take up to 24 hours for the information from the ISS to make its way to the Log. That means, for example, that the details of an activity conducted by the astronauts on the afternoon of a specified Crew Interaction Day will be posted on the Experiment Log no later than the afternoon of the following day (and likely far sooner than that).
Conducting Your Ground Truth Experiments
Ground truth experiments – the control versions of the experiment conducted on Earth while the microgravity experiment is being conducted in orbit – are an essential part of analyzing the results of the flight experiment. Once the flight experiment returns to Earth, simultaneous harvesting and analysis of both the flight experiment and the ground truth experiment allows the research team to assess the role of gravity in the physical, chemical, or biological system under study. It is hard to imagine how the role of gravity can be determined without ground truth experiments conducted at the same time as the flight experiment.
However, given that it may take up to a day to receive a report on exactly what time a specific activity was conducted with an experiment aboard the ISS, student teams are encouraged to shift activities with their ground truth experiments by 1 day (24 hours). That will allow teams to ensure that the timing of activities they carry out on their ground truth experiments accurately reflects the timing of activities with their experiment aboard the station. This is especially important for experiments that are sensitive to exact timing. For example, if a microbiological experiment is likely to produce different results depending on whether it is active for 40 or 50 hours, the teams will want to match the exact timing of the experiment aboard the station with their ground truth experiment.
Nomenclature:
The purpose of this log is to provide the student flight experiment teams information on the handling of their experiment, as well as to provide updates on the progress of the Mission. Each SSEP experiment is assigned a serial number before launch. This serial number is used by NCESSE, Nanoracks, and NASA to identify individual SSEP experiments. For this log, the individual experiments are identified using a serial number, e.g., NRP-10009-4, S/N 1062, together with the Community and Experiment names (see Section 4 below).
SSEP Mission 19 to ISS Endeavour Payload
Ferry Vehicle: SpaceX CRS-34 (SpaceX Falcon rocket with Cargo Dragon 2 spacecraft)
Launch Site: LC-40 Kennedy Space Center, Florida
Launch Date: May 15, 2026 at 6:05 PM ET
Launch Date History:
Originally Projected Launch Date: April 2026
Rescheduled to: May 12, 2026
Rescheduled to: May 12, 2026 at 7:16 pm ET
Rescheduled to: May 13, 2026 at 6:50 pm ET
Rescheduled to: May 15, 2026 at 6:05 pm ET
Official Mission Patch for SpaceX CRS-34
May 15, 2026 at 6:05 PM ET: SpaceX CRS-34 successfully launched to the International Space Station (ISS) from Space Launch Complex 40, Cape Canaveral Florida.
May 17, 2026 at 6:37 AM ET: The SpaceX Dragon spacecraft docked to the forward port of the International Space Station’s Harmony module, carrying nearly 6,500 pounds of food, supplies, and equipment for the Expedition 74 crew. This is the 34th SpaceX commercial resupply services mission to the space station for NASA.
4. Flight Experiment Log, On-Orbit Operations: Mission 19 Endeavor Payload
Interactions Scheduled Prior to Flight (subject to change) CLICK ON TABLE TO ZOOM
Serial Number 1078:
Record of Reported On-Orbit Interactions
NRP-10009-1, S/N 1078 Guelph, ON, CAN: Brine Shrimps Reaction to Purple Sulfur
(U-14) Action: Green Clamp Opened/Shaken Gently for 15 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
NRP-10009-2, S/N 1078 Mesa, AZ: Microgravity’s Impact on In Vitro Tau Protein Aggregation
(A=0) Action: Green Clamp Opened/Shaken Gently for 15 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
NRP-10009-3, S/N 1078 Colusa, CA: Bioremediation in Microgravity: Harnessing Oil-Eating Bacteria for Environmental Restoration
(A=0) Action: Green Clamp Opened/Shaken Gently for 120 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
NRP-10009-4, S/N 1078 Colorado Springs, CA: Fungal Bioleaching in Microgravity: Fungal Approaches to Metal Recover
(A=0) Action: Green Clamp Opened/Shaken Gently for 30 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
(A+2) Action: Blue Clamp Opened/Shaken Gently for 30 seconds; When Action Occurred on ISS: Between 11:15 AM ET, 05/19/26; Time Nanoracks Notified NCESSE: 11:27 AM ET, 05/19/26
NRP-10009-5, S/N 1078 Pittsfield, MA: The Impact of Gravity on Cellular Metabolism in Escherichia coli
NRP-10009-6, S/N 1078 Plano, TX: Capillary Action within Crassula ovata (jade plant) Leaf Cells in Microgravity
(A=0) Action: Green Clamp Opened/Shaken Gently for 15 seconds/Exposed to light for 105 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
(A+2) Action: Blue Clamp Opened/Shaken Gently for 15 seconds; When Action Occurred on ISS: Between 11:15 AM ET, 05/19/26; Time Nanoracks Notified NCESSE: 11:27 AM ET, 05/19/26
NRP-10009-8, S/N 1078 Pittsburgh, PA: The Effects of Microgravity on the Quantitative Measurements of Calcite Crystals
(A=0) Action: Green Clamp Opened/Blue Clamp Opened/Shaken gently for 30 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
Serial Number 1079:
Record of Reported On-Orbit Interactions
NRP-10009-1, S/N 1079 Brazil/Portugal: The effect of microgravity on the osteogenic potential of mesenchymal stem cells secretome
NRP-10009-2, S/N 1079 Edmonton, AB, CAN: Will soybeans germinate in space?
(A=0) Action: Green Clamp Opened/Shaken gently for 15 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
(U-14) Action: Blue Clamp Opened/Shaken Gently for 30 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
NRP-10009-3, S/N 1079 Waxahachie, TX: Growing strawberries in microgravity
(A=0) Action: Green Clamp Opened/Shaken gently for 30 seconds/Exposed to light for 90 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
(A+2) Action: Shaken Gently for 30 seconds/Exposed to light for 90 seconds; When Action Occurred on ISS: Between 11:15 AM ET, 05/19/26; Time Nanoracks Notified NCESSE: 11:27 AM ET, 05/19/26
(U-14) Action: Exposed to light 120 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
NRP-10009-4, S/N 1079 Pickerington, OH: The Effect of Microgravity on antibacterial hand sanitizer
(A=0) Action: Green Clamp Opened/Shaken gently for 30 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
(A+2) Action: Blue Clamp Opened/Shaken Gently for 30 seconds; When Action Occurred on ISS: Between 11:15 AM ET, 05/19/26; Time Nanoracks Notified NCESSE: 11:27 AM ET, 05/19/26
NRP-10009-5, S/N 1079 Glendora, CA: Microgravity’s Effects on Artemia Salina Nauplii Development
(U-14) Action: Green Clamp Opened/Shaken Gently for 15 seconds/Exposed to light 105 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
NRP-10009-6, S/N 1079 Hillsborough County, FL: Production of Mung Beans i.e., Vigna radiata in Microgravity
(U-14) Action: Green Clamp Opened/Shaken Gently for 15 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
NRP-10009-7, S/N 1079 iForward-Grantsburg, WI: Sunflower Seeds in Microgravity
(U-14) Action: Green Clamp Opened/Shaken Gently for 60 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
Serial Number 1080:
Record of Reported On-Orbit Interactions
NRP-10009-1, S/N 1080 Long Beach, NY: The Effect of Microgravity on the Germination of Mustard Microgreen Seeds
(U-14) Action: Green Clamp Opened/Shaken Gently for 15 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
NRP-10009-2, S/N 1080 Athens, OH: Effect of Microgravity on Growth of Watercress: a Promising Space Food
(U-14) Action: Green Clamp Opened/Shaken Gently for 15 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
NRP-10009-3, S/N 1080 Ukraine-slot 2: Investigation of the effect of microgravity on germination of legume plants
(U-14) Action: Green Clamp Opened/Shaken Gently for 15 seconds; When Action Occurred on ISS: 4:00 AM ET, 06/01/26; Time Nanoracks Notified NCESSE: 9:30 AM ET, 06/01/26
NRP-10009-4, S/N 1080 San Antonio, TX: Does Microgravity Differentially Effect Corrosion of Iron and Aluminum
(A=0) Action: Green Clamp Opened/Blue Clamp Opened/Shaken vigorously for 15 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
NRP-10009-5, S/N 1080 Texarkana, TX: Can Mold Grow in Microgravity?
(A=0) Action: Green Clamp Opened/Shaken gently for 15 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
NRP-10009-7, S/N 1080 Albany, NY: The Effect of Microgravity on Mentha piperita
(A=0) Action: Green Clamp Opened/Shaken gently for 15 seconds; When Action Occurred on ISS: Between 5:30 AM ET and 6:00 AM ET, 05/18/26; Time Nanoracks Notified NCESSE: 9:24 AM ET, 05/18/26
6. Return of Experiments to Student Teams