2025-2026 Science Planning Summary
United States Antarctic Program United States Antarctic Program Logo National Science Foundation Logo
Alert
As of midnight, December 20, 2024, the U.S. government is experiencing a lapse in appropriations. Until the situation is resolved, please refer to OPM.gov website regarding the status for federal employees. We expect the U.S. Antarctic Program to remain operational under our contractor for the foreseeable future. Should the situation change, we will post additional information on this website when it is legally permissible to do so.
 
2025-2026 USAP Field Season
Station and Vessel Schedules

The United States Antarctic Program operates three permanent research stations on the continent and two research vessels.


Opening Dates

  Austral Summer Openings Austral Winter Openings
Operational Science
McMurdo
(Early Season*)
18 Aug 2025 Continuing through Winter/WinFly
5 Sep 2025
17 Mar 2026
McMurdo (Mainbody) 3 Oct 2025 3 Oct 2025
South Pole 1 Nov 2025 1 Nov 2025 14 Feb 2026
Palmer 13 Oct 2025 13 Oct 2025 14 April 2026

Estimated Population

Summer Winter
McMurdo 952
(weekly average)
188
(winter total)
South Pole 170
(weekly average)
45
(winter total)
Palmer 44
(weekly average)
20
(winter total)