From: Kennedy Space Center
Posted: Wednesday, April 24, 2019
NASA commercial cargo provider SpaceX is targeting no earlier than 4:22 a.m. EDT Tuesday, April 30, for the launch of its next resupply mission to the International Space Station. Live coverage will begin on NASA Television and the agency’s website Monday, April 29, with prelaunch events.
This is the 17th SpaceX mission under NASA’s Commercial Resupply Services contract. The Dragon spacecraft will deliver supplies and critical materials to support dozens of the more than 250 science and research investigations that will occur during Expeditions 59 and 60. The spacecraft’sunpressurized trunk will transport NASA’s Orbiting Carbon Observatory-3 (OCO-3) and Space Test Program-Houston 6 (STP-H6).
OCO-3 will be installed robotically on the exterior of the space station’s Japanese Experiment Module Exposed Facility Unit, where it will measure and map carbon dioxide from space to increase our understanding of the relationship between carbon and climate. STP-H6 is an X-ray communication investigation that will be used to perform a space-based demonstration of a new technology for generating beams of modulated X-rays. This technology may be useful for providing efficient communication to deep space probes, or communicating with hypersonic vehicles where plasma sheaths prevent traditional radio communications.
The spacecraft will take two days to reach the space station before installation on Thursday, May 2. When it arrives, astronaut David Saint-Jacques of the Canadian Space Agency will grapple Dragon, with NASA astronaut Nick Hague serving as backup. NASA astronaut Christina Koch will assist by monitoring telemetry during Dragon’s approach. After Dragon capture, mission control in Houston will send commands to the station’s arm to rotate and install the spacecraft on the bottom of the station’s Harmony module.
Full mission coverage is as follows (all times Eastern):
Monday, April 29
Tuesday, April 30
Thursday, May 2
Dragon will remain at the space station until May 31, when the spacecraft will return to Earth with research and return cargo.
The deadline for media to apply for accreditation for this launch has passed, but for information about media accreditation, email ksc-media-accreditat@
For the latest schedule of prelaunch briefings, events and NASA TV coverage, visit:
Learn more about the SpaceX resupply mission at:
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