The peppers developed from flowers that bloomed over the past few weeks. Peppers are self-pollinating, and once pollination occurred, peppers started forming 24 to 48 hours later; however, not all pollinated flowers developed into peppers.
A unique feature of the APH is that it can be controlled remotely. To pollinate the flowers in orbit, the team at NASA’s Kennedy Space Center instructed APH to run its fans at variable rates to create a gentle breeze in microgravity to agitate the flowers and encourage the transfer of pollen. The space station crew also provided assistance by hand pollinating some of the flowers.
Studies of fruit development in microgravity are limited, and NASA researchers have noted lower fruit development versus ground observations in this experiment for reasons that are not fully understood at this point. Overcoming the challenges of growing fruit in microgravity is important for long-duration missions during which crew members will need good sources of Vitamin C – such as peppers – to supplement their diets.
The average length for this type of pepper is just over three inches in ground tests. Hatch chile peppers are a mild heat pepper that starts out as green and will ripen to red over time, but it’s unknown what effect microgravity will have on the length to which they grow and their potency.
Astronauts will perform two harvests this year – one at 100 days in late October, and one at 120 days in early November. At those times, astronauts will sanitize the peppers, eat part of their harvests, and return the rest to Earth for analysis.
I loved getting my hands on the pepper plants and pollinating them! I felt a much higher-than-usual level of focus compared to tending plants on Earth. Of course I played Red Hot Chili Peppers for them! 🌶 See why we are growing this complicated crop: https://t.co/7YJ8yfrRfPpic.twitter.com/8MnpLVbYoA
SpaceX is now targeting March 6 at 11:50 p.m. EST for launch of its 20th commercial resupply services mission (CRS-20) to the International Space Station. During standard preflight inspections, SpaceX identified a valve motor on the second stage engine behaving not as expected and determined the safest and most expedient path to launch is to utilize the next second stage in line that was already at the Cape and ready for flight. The new second stage has already completed the same preflight inspections with all hardware behaving as expected. The updated target launch date provides the time required to complete preflight integration and final checkouts.
The cargo Dragon will lift off atop a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida carrying more than 5,600 pounds of science investigations and cargo to the station, including research on particle foam manufacturing, water droplet formation, the human intestine and other cutting-edge investigations.
NASA has requested SpaceX move off from May 1 for the launch of the company’s 17th commercial resupply mission to the International Space Station.
On April 29, the space station team identified an issue with one of the station’s Main Bus Switching Units that distributes power to two of the eight power channels on the station. There are no immediate concerns for the crew or the station. Teams are working on a plan to robotically replace the failed unit and restore full power to the station system. Additional information will be provided as it becomes available. The earliest possible launch opportunity is no earlier than Friday, May 3.
NASA’s commercial cargo provider SpaceX is targeting 3:59 a.m. EDT on Wednesday, May 1, for the launch of its 17th resupply mission to the International Space Station after successful completion of its static fire engine test. Packed with more than 5,500 pounds of research, crew supplies and hardware, the SpaceX Dragon spacecraft will launch on a Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Air Force Station.
Follow along with the coverage of the SpaceX CRS-17 mission with prelaunch events on NASA Television and at www.nasa.gov/live.
Monday, April 29 at 10:30 a.m. — What’s On Board science briefing
Tuesday, April 30 at 1 p.m. — Prelaunch news conference
Wednesday, May 1 at 3:30 a.m. — NASA TV launch coverage