The National Aeronautics and Space Administration (NASA) and SpaceX are targeting October 13, 2026, for the launch of the 35th Commercial Resupply Services (CRS-35) mission, delivering critical health research and the final set of solar array upgrades to the International Space Station (ISS).

In a press release detailing the mission, NASA confirmed the SpaceX Falcon 9 rocket and Cargo Dragon spacecraft will lift off from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. The mission carries more than 6,300 pounds of cargo, including four primary health investigations designed to protect astronauts during long-duration lunar and Martian missions, alongside hardware that will complete a multi-year modernization of the orbital outpost’s power generation system.

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Biological and physical sciences payload

The CRS-35 payload features four distinct investigations managed by NASA’s Biological and Physical Sciences division. These experiments focus on both human and plant health, with applications for future deep-space exploration and terrestrial medicine.

One key experiment involves 3D, lab-grown models of the human brain. These models will spend five weeks in microgravity to help researchers study how short-duration spaceflight affects brain tissue at the cellular level. A separate botanical investigation will compare molecular and structural changes between Earth-grown and space-grown plants infected with a disease-causing fungus, providing data to guide future space agriculture efforts.

The mission also carries a compact microplate reader developed under the Commercially Enabled Rapid Space Science initiative. This hardware allows astronauts to detect and measure biomarkers, such as antibodies and proteins, directly aboard the station. On-orbit analysis eliminates the traditional requirement to wait for sample return to Earth. The mission includes the fourth and final planned phase of a precision health investigation in which astronauts will sample station surfaces to study how drug-resistant bacteria survive and evolve in a microgravity environment.

Completing the orbital power upgrade

Alongside the scientific payload, the Cargo Dragon will deliver the final set of ISS Roll-Out Solar Arrays (iROSA). These advanced, compact solar panels are designed to unroll in space, augmenting the station’s aging rigid solar arrays.

The iROSA installation program began in June 2021 with the launch of the first pair aboard the SpaceX CRS-22 mission. Over a series of spacewalks conducted between 2021 and 2023, astronauts installed six arrays. The delivery of this final set on CRS-35 will complete the station’s power modernization program, which NASA states provides a 20% to 30% increase in overall power generation capability.

Station traffic and operational context

The arrival of CRS-35 occurs during a period of high traffic for the orbital laboratory. The SpaceX Cargo Dragon is scheduled for an autonomous docking at the space-facing port of the ISS Harmony module at 15:00 UTC (11:00 a.m. EDT) on Thursday, October 15, 2026.

To accommodate this arrival, NASA expedited the departure of the SpaceX Crew-12 mission. The Crew-12 spacecraft safely splashed down off the West Coast of the United States on October 8, 2026, concluding a 237-day mission. Clearing the Harmony module’s docking port was operationally necessary to allow the Cargo Dragon to dock and facilitate the extraction of the solar arrays before seasonal solar angles, known as beta angle cutouts, prevent astronauts from conducting the required installation spacewalks.

The Crew-13 astronauts, who arrived at the station on October 1, 2026, will be responsible for unpacking the Dragon spacecraft following its successful docking.

Commercial resupply framework

SpaceX operates the resupply flights under its second Commercial Resupply Services (CRS-2) contract with NASA. The Cargo Dragon vehicle remains a critical asset for the agency’s research objectives because it is currently the only operational resupply spacecraft capable of returning significant amounts of scientific cargo intact to Earth.

Following its stay at the orbital laboratory, the CRS-35 spacecraft is expected to undock and return to Earth in mid-November 2026, bringing back the completed biological samples and other research materials for terrestrial analysis.

AirPro News analysis

The timing of the CRS-35 mission highlights the complex logistical choreography required to maintain the International Space Station in its mature operational phase. Expediting the Crew-12 departure to secure the Harmony port before beta angle constraints take effect demonstrates how tightly interdependent crew rotations, cargo deliveries, and spacewalk schedules have become. The completion of the iROSA program also secures the station’s electrical baseline for its remaining operational life, ensuring sufficient power margins for the increasingly power-dense commercial and government research payloads flying on vehicles like the Cargo Dragon.

The National Aeronautics and Space Administration (NASA) will deploy a fleet of three next-generation helicopters to Mars in late 2028 to map shallow subsurface water ice, a critical resource for future human exploration. The rotorcraft will utilize ground-penetrating radar to scout potential landing sites, addressing a major logistical hurdle for crewed missions.

Announced by NASA’s Jet Propulsion Laboratory (JPL), the SkyFall mission will target the Martian mid-northern latitudes. The mission represents a shift in planetary exploration architecture, as the helicopters will launch aboard the Space Reactor-1 Freedom (SR-1 Freedom) spacecraft, which utilizes a nuclear electric propulsion system, and will deploy without a traditional rover intermediary.

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Engineering the next-generation rotorcraft

Operating aircraft in the Martian atmosphere, which has 1 percent of the density of Earth’s atmosphere, presents severe aerodynamic challenges. To carry heavier science payloads than their predecessor, the SkyFall helicopters require significantly faster rotor speeds to generate sufficient lift. On May 7, 2026, JPL engineers successfully accelerated the tips of the next-generation rotor blades beyond Mach 1 during 137 test runs in a specialized Mars simulation chamber.

Al Chen, Mars Exploration Program Manager at JPL, highlighted the difficulty of the engineering requirements.

“NASA had a great run with the Ingenuity Mars Helicopter, but we are asking these next-generation aircraft to do even more at the Red Planet. That’s not an easy ask. While everything about Mars is hard, flying there is just about the hardest thing you can do. That’s because its atmosphere is so incredibly thin that it is hard to generate lift, and yet Mars has significant gravity.”

The primary instrument for the SkyFall fleet is a ground-penetrating radar designed to operate across a frequency range of 500 to 2,500 megahertz. On August 6, 2026, JPL confirmed the successful testing of a flexible, metallized fabric antenna made from polyester and Vectran. The material allows the antenna to bend during landings and snap back into position for flight. Christine Gebara, SkyFall Ground-Penetrating Radar Mechanical Lead at JPL, noted the scale of the instrument, stating that the antenna is about one and a half times longer than the helicopter’s legs.

Mapping resources for human exploration

The primary scientific objective of the SkyFall mission is to locate accessible, shallow water ice. Transporting sufficient water and rocket propellant from Earth for sustained human exploration is cost-prohibitive, making local resource utilization mandatory. Orbiting spacecraft cannot effectively map the top several yards of Martian regolith, necessitating low-altitude aerial surveys.

Adrian Tang, SkyFall Ground-Penetrating Radar Lead Instrument Scientist at JPL, explained the operational concept. “The only way to detect shallow subsurface ice remotely is to fly close to the ground. By flying low and slow, a SkyFall helicopter could capture radar images that resolve the fine layering where dry soil gives way to ice, detecting its presence and mapping its extent.”

Each SkyFall helicopter is expected to cover 0.6 to 1.2 miles (1 to 2 kilometers) during a standard 2.5-minute flight. NASA is currently evaluating candidate landing sites in the mid-northern latitudes between 30 and 45 degrees North. The agency will hold a virtual Landing Site Workshop on February 9 and 10, 2027, to gather input from the science community and prioritize these zones.

From technology demonstrator to operational fleet

The SkyFall mission represents a direct evolution from the Ingenuity Mars Helicopter, a 3.97-pound (1.8-kilogram) technology demonstrator that performed the first powered, controlled flight on another planet on April 19, 2021. Ingenuity ultimately completed 72 flights over nearly three years. While Ingenuity carried no science instruments and relied on the Perseverance rover for communications, the SkyFall rotorcraft are larger and equipped with radar, cameras, and sensors.

AeroVironment, an aerospace manufacturer headquartered in Arlington, Virginia, with manufacturing facilities in Simi Valley, California, is co-designing and co-manufacturing the SkyFall helicopters in partnership with JPL. This continues the collaboration that produced the Ingenuity rotorcraft.

The deployment sequence for SkyFall introduces new operational concepts. The helicopters will utilize a mid-air deployment system, releasing directly from an entry capsule to fly themselves to the Martian surface without a lander or rover intermediary. Following a planned initial Mars flyby in 2029, the fleet is scheduled to land in Fall 2030 and will communicate directly with orbiting spacecraft.

AirPro News analysis

The SkyFall mission marks a critical transition in planetary aviation from experimental demonstration to operational necessity. By removing the rover as a communications relay and deployment platform, NASA is treating rotorcraft as independent, primary exploration vehicles. The integration of the Space Reactor-1 Freedom nuclear electric propulsion system for the transit phase indicates a broader shift in deep-space logistics, prioritizing the high-mass, high-power transit architectures required for future crewed missions. We view the success of the mid-air deployment sequence as the highest-risk phase of the mission, as it requires autonomous flight initiation immediately following atmospheric entry.

The SpaceX Crew Dragon spacecraft Freedom splashed down in the Pacific Ocean off the coast of Los Angeles on October 8, 2026, safely returning four astronauts from a 237-day science expedition aboard the International Space Station (ISS).

The successful return marks the completion of the Crew-12 mission, the 12th operational crew rotation flight conducted by SpaceX under the National Aeronautics and Space Administration (NASA) Commercial Crew Program. According to a NASA press release, the capsule touched down at 11:34 a.m. EDT (15:34 UTC) following a nearly eight-month deployment in low Earth orbit.

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Re-entry and recovery operations

Return operations for the Crew-12 astronauts began on October 7, 2026, when the hatch between the SpaceX Dragon spacecraft and the ISS was closed at 9:20 a.m. EDT. The crew had been officially relieved by a newly arrived rotation earlier in the month, though their departure experienced a slight delay due to unfavorable weather conditions in the designated splashdown zones.

Following undocking, the spacecraft executed its deorbit burn at approximately 10:46 a.m. EDT on October 8. NASA mission updates indicate that the capsule deployed its drogue parachutes at an altitude of 18,000 feet while traveling at a speed of approximately 350 mph. The main parachutes subsequently deployed, slowing the spacecraft for a controlled water landing at 11:34 a.m. EDT.

Immediately following the splashdown, recovery teams approached the capsule. The recovery ship hoisted the Dragon spacecraft onto the main deck to allow the crew to exit. The astronauts will undergo standard post-flight medical evaluations before beginning their journey back to NASA’s Johnson Space Center in Houston.

Crew-12 mission milestones

The Crew-12 complement included NASA astronauts Jessica Meir, serving as Commander, and Jack Hathaway, serving as Pilot. They were joined by Mission Specialists Sophie Adenot of the European Space Agency (ESA) and Andrey Fedyaev of Roscosmos.

During their 237 days aboard the orbital laboratory, the four-person crew conducted critical scientific research and completed four spacewalks. The mission duration adds significantly to the spaceflight experience of the crew members. For Commander Jessica Meir, the completion of the Crew-12 flight brings her total cumulative time in space to 440 days, placing her among the top 10 NASA astronauts for total days spent in orbit.

Commercial Crew Program context

The Crew-12 mission represents SpaceX’s 13th crewed flight overall as part of the NASA Commercial Crew Program, a partnership designed to provide reliable crew transportation to and from the ISS. SpaceX remains the primary operational provider of crewed flights for the agency, facilitating continuous human presence and research in low Earth orbit.

The mission began on February 13, 2026, lifting off at 5:15 a.m. EST from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida atop a SpaceX Falcon 9 rocket. The launch followed initial weather delays that shifted the target date from February 11. The Crew Dragon Freedom then docked autonomously to the space-facing port of the ISS Harmony module at approximately 3:15 p.m. EST on February 14, 2026, where it remained for the duration of the expedition.