Jump to content

Polaris program

From Wikipedia, the free encyclopedia
This is an old revision of this page, as edited by RickyCourtney (talk | contribs) at 15:31, 12 September 2024 (Extravehicular activities (EVAs): Duration was more like 26 minutes…). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Polaris
Program overview
CountryUnited States
OrganizationSpaceX
StatusActive
Program history
Duration2022–present
Launch site(s)
Vehicle information
Crewed vehicle(s)
Launch vehicle(s)

The Polaris program is a private spaceflight program organized by entrepreneur Jared Isaacman. Building on his experience as commander of the Inspiration4 mission—the first all-civilian spaceflight—Isaacman contracted with SpaceX to create Polaris. The program involves two missions using SpaceX's Crew Dragon spacecraft and will culminate in a planned crewed flight on Starship.

Flights

Mission name Launch date Launch vehicle Spacecraft Orbit Crew Outcome
Polaris Dawn (Mission I) Error: All values must be integers (help) UTC (5:23:49 am EDT) Falcon 9 Block 5 Crew Dragon (C207.3 Resilience) ♺ LEO, 1,400 km (870 mi) max apogee[1][2] In orbit
Mission II TBA Falcon 9 Block 5 Crew Dragon TBA TBA
Planned
Mission III TBA Starship Starship TBA
Planned

Polaris Dawn

The Polaris Dawn mission propelled Isaacman and his crew of three—Scott Poteet, Sarah Gillis and Anna Menon—to an elliptic orbit on 10 September 2024 that took them up to 1,400 kilometres (870 mi) away from Earth, the farthest anyone has been from the planet since NASA's Apollo program, so that they pass through parts of the Van Allen radiation belt to study the health effects of space radiation and spaceflight on the human body. Later in the mission, with a lower apogee, Isaacman and Gillis successfully completed the first commercial spacewalk.[2]

Mission II

Launching at a date and with a crew yet to be announced, the second mission in the Polaris Program will launch via a Falcon 9 Block 5 vehicle with a Crew Dragon capsule. The mission could potentially lift the Hubble Space Telescope into a higher orbit to prevent it from burning up in the atmosphere.[3][4]

Mission III

The third Polaris mission is set to be launched on Starship, SpaceX's next-generation launch system, "very far off in SpaceX’s future". Starship is in early flight testing as of September 2024 and is planned to carry crew only after Starship has made approximately 100 successful cargo flights.[5] This is to be the final flight of the Polaris Program.[6][7]

Extravehicular activities (EVAs)

Start Date/Time Duration End Time Spacecraft Crew Remarks
12 September 2024
10:12
26 min[a][8] 11:58 Crew Dragon Resilience United States Jared Isaacman
United States Sarah Gillis
Testing EVA capability of Dragon and a new suit designed by SpaceX. Isaacman left the capsule for 7 minutes 56 seconds followed by Gillis, who left the capsule for 7 minutes 15 seconds. The rest of the two crew members was exposed to the vacuum of space while being inside the capsule. First all private, four-person crew spacewalk, with commercially developed hardware, procedures, and the EVA suit.[9]

See also

References

  1. ^ Foust, Jeff (11 December 2023). "Polaris Dawn rescheduled for April". SpaceNews. Retrieved 11 December 2023.
  2. ^ a b "Polaris Dawn". Polaris Dawn. Retrieved 21 August 2024.
  3. ^ Chang, Kenneth (29 September 2022). "NASA May Let Billionaire Astronaut and SpaceX Lift Hubble Telescope". Washington Post. Archived from the original on 6 May 2024. Retrieved 25 April 2024.
  4. ^ NASA, SpaceX to Study Hubble Telescope Reboost Possibility, 22 December 2022, retrieved 8 May 2024.
  5. ^ Kurkowski, Seth (14 April 2024). "Polaris Dawn is getting closer and closer to being launch ready". Space Explored. Retrieved 25 April 2024.
  6. ^ Sheetz, Michael (14 February 2022). "Billionaire astronaut Jared Isaacman buys more private SpaceX flights, including one on Starship". CNBC. Retrieved 15 February 2022.
  7. ^ Davenport, Christian. "Jared Isaacman, who led the first all-private astronaut mission to orbit, has commissioned 3 more flights from SpaceX". Washington Post. Retrieved 15 February 2022.
  8. ^ McDowell, Jonathan [@planet4589] (12 September 2024). "The hatch open/close time was about 26m 40s. Isaacman was outside hatch for 7 min 56m; Gillis for about 7m15s" (Tweet). Retrieved 12 September 2024 – via Twitter.
  9. ^ "SpaceX Polaris Dawn astronauts perform historic 1st private spacewalk in orbit (video)". space.com. 12 September 2024. Retrieved 12 September 2024.


Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).