CRS-17 Liftoff No Earlier Than Friday, May 3, at 3:11 EDT

NASA and SpaceX are targeting no earlier than Friday, May 3, for the launch of the company’s 17th commercial resupply mission to the International Space Station. Launch is scheduled for 3:11 a.m. EDT from Space Launch Complex 40 on Cape Canaveral Air Force Station in Florida.

On April 29, the space station team identified an issue with one of the station’s Main Bus Switching Units (MBSU) that distributes power to two of the eight power channels on the station. There are no immediate concerns for the crew or the station.

Flight controllers are scheduled to perform a series of maneuvers to robotically swap the failed MSBU for a spare on Wednesday, May 1 and Thursday, May 2. After the swap is complete, flight controllers will conduct a series of checkouts on the newly installed MBSU and take steps to return the station to full power capability to support SpaceX capture and berthing.

SpaceX CRS-17 Launch No Earlier Than Friday, May 3

CRS-17 is SpaceX's 17th Commercial Resupply Services Mission to the International Space Station. It will launch from from Space Launch Complex 40 at Cape Canaveral Air Force Station no earlier than Friday, May 3. Photo credit: SpaceX image
CRS-17 is SpaceX’s 17th Commercial Resupply Services Mission to the International Space Station. It will launch from from Space Launch Complex 40 at Cape Canaveral Air Force Station no earlier than Friday, May 3. Photo credit: SpaceX image

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.

SpaceX Targeting Wednesday, May 1 at 3:59 EDT for CRS-17 Launch

The two-stage Falcon 9 launch vehicle lifts off Space Launch Complex 40 at Cape Canaveral Air Force Station during SpaceX’s 16th commercial resupply services mission to the International Space Station on Dec. 5, 2018. SpaceX is targeting Wednesday, May 1, at 3:59 EDT for its CRS-17 mission launch. Photo credit: NASA/Kim Shiflett
The two-stage Falcon 9 launch vehicle lifts off Space Launch Complex 40 at Cape Canaveral Air Force Station during SpaceX’s 16th commercial resupply services mission to the International Space Station on Dec. 5, 2018. SpaceX is targeting Wednesday, May 1, at 3:59 EDT for its CRS-17 mission launch. Photo credit: NASA/Kim Shiflett

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

Learn more about station activities by following @space_station and @ISS_Research on Twitter as well as the ISS Facebook and ISS Instagram accounts.

NASA on the Air

Ham radio operator Choke E29AHU from Thailand shared this photo on Twitter of his 2-year-old daughter participating in the event. Photo credit: Twitter user @chokelive
Ham radio operator Choke E29AHU from Thailand shared this photo on Twitter of his 2-year-old daughter Porjai participating in the event. Photo credit: Chokeumnuay Khowsakool

By Rachel Cox
NASA’s Kennedy Space Center

In a surprising and touching turnout, tens of thousands of people around the world turned on their ham (or amateur) radios to participate in several “NASA on the Air” events held over the past year.

“This was a beautiful thing,” said Kevin Zari, head of the amateur radio club at NASA’s Kennedy Space Center. Zari especially loved the event photos tweeted by people from different countries.

Radio clubs from 10 NASA centers and the Jet Propulsion Laboratory in Pasadena, California, all supported the yearlong event. Ham radio operators tuned in from all 50 U.S. states and 56 countries across six continents to chat with NASA personnel.

“There were times in our log where we had 20 contacts a minute — it was that quick. And there were other more relaxed times, where we were able to just sit and talk,” Zari said. “I don’t know how many times people said, ‘We thought NASA was gone. We thought NASA was dead.’ So we educated people around the world.”

The NASA on the Air event wrapped up with three special opportunities for people to use their radios to download images from the International Space Station. This was done in coordination with Amateur Radio on the International Space Station (ARISS), an international consortium of amateur radio organizations and space agencies. ARISS encourages young people to explore science, technology, engineering and math through the use of ham radios, and their program works to connect students worldwide with astronauts onboard the space station.

For the final three events, cosmonauts on the station transmitted several NASA on the Air images from space. Participants could compete to collect images and upload them to a website for credit. Over 34,600 uploads were received from 18,619 participants.

The reaction to NASA on the Air was so positive, NASA Radio Clubs plans to activate NASA on the Air for special anniversaries in 2019 and beyond (e.g. 50th Anniversary of Apollo 11). Follow @NASARadioClubs on Twitter or join the NASA on the Air (NOTA) group on Facebook for notifications of future activities.

Plant Experiment Veg-03 H Initiated on Space Station

Canadian astronaut David Saint-Jacques began growing two new crops aboard the International Space Station on Saturday, March 9, 2019.
Canadian astronaut David Saint-Jacques initiated plant experiment Veg-03 H aboard the International Space Station on Saturday, March 9, 2019. This required Saint-Jacques to add water to “plant pillows,” which are space pots for plants that contain pre-packed seeds, granular media for the roots to grow into, controlled-release fertilizer, and a way for the on-orbit gardeners to water their plants in microgravity. The experiment should take 30 days to complete and will provide data on food safety for the new crops to compare to ground studies in order to establish a baseline.

Canadian astronaut David Saint-Jacques began growing two new crops aboard the International Space Station on Saturday, March 9, 2019. The two crops, Wasabi Mustard Greens and Extra Dwarf Pak Choi, are part of experiment Veg-03 H. Saint-Jacques placed six “plant pillows” into the veggie growth chamber. This experiment is part of ongoing research on the space station and on Earth to identify fresh vegetables capable of providing astronauts food and nutrition during long-duration spaceflight, including future missions to the Moon or Mars.

Each pillow serves as a pot designed for space with pre-packed seeds, a substance for the roots to grow into, controlled-release fertilizer, and a way for the in-orbit gardeners to water their plants in microgravity.

High school and middle school students participating in the Fairchild Tropical Botanic Garden’s Growing beyond Earth Challenge identified Extra Dwarf Pak Choi as a potential candidate crop for space through classroom science experiments, along with Dragoon Lettuce, which NASA astronaut Serena Auñón-Chancellor grew on the station last fall. Using science stations designed to mimic conditions on the space station gave students a chance to grow plants and record data that NASA was able to use. Those experiments culminated in the plant species which launched to the space station aboard the 15th SpaceX cargo resupply mission on June 29, 2018, along with three other plant species.

The experiment should take 30 days to complete and will provide data on food safety for the new crops to compare to ground studies in order to establish a baseline.

“I think the astronauts will be surprised to learn that the Extra Dwarf Pak Choi that they grow and eat has the same amount of Vitamin C by weight as does a fresh Florida orange,” said NASA scientist Matt Romeyn, “and the leaves don’t taste much different than other fresh leafy greens.”

#NASAinNOLA

Are you in New Orleans for the Fourth of July weekend? NASA has a large exhibit at Essence Fest this year. Stop by the Audubon Institute’s Aquarium July 1-5!

NASAinNOLA

Celebrate the Fourth of July with Commercial Crew

4thCelebrate Fourth of July with Commercial Crew by coloring our newest coloring sheet. You candownload the sheet, at go.nasa.gov/1Hy6H2U. To follow the latest progress on NASA’s Commercial Crew Program, check out the Commercial Crew blog, at blogs.nasa.gov/commercialcrew