Scientific and Technical Subcommittee: 2026

Sixty-third session (2-13 February 2026)

Webcast

Morning Meeting Afternoon Meeting
Monday 2 February 2026 a.m. STSC 1035 meeting Monday 2 February 2026 p.m. STSC 1036 meeting
Tuesday 3 February 2026 a.m. STSC 1037 meeting Tuesday 3 February 2026 p.m. STSC 1038 meeting
Wednesday 4 February 2026 a.m. STSC 1039 meeting Wednesday 4 February 2026 p.m. STSC 1040 meeting
Thursday 5 February 2026 a.m. STSC 1041 meeting Thursday 5 February 2026 p.m. STSC 1042 meeting
Friday 6 February 2026 a.m. STSC 1043 meeting Friday 6 February 2026 p.m. STSC 1044 meeting
Monday 9 February 2026 a.m. STSC 1045 meeting Monday 9 February 2026 p.m. STSC 1046 meeting
Tuesday 10 February 2026 a.m. STSC 1047 meeting Tuesday 10 February 2026 p.m. STSC 1048 meeting
Wednesday 11 February 2026 a.m. STSC 1049 meeting Wednesday 11 February 2026 p.m. STSC 1050 meeting
Thursday 12 February 2026 a.m. STSC 1051 meeting Thursday 12 February 2026 p.m. STSC 1052 meeting
Friday 13 February 2026 a.m. STSC 1053 meeting Friday 13 February 2026 p.m. STSC 1054 meeting

Session Documents

Statements

Meeting Guidelines

Daily Journals

Technical Presentations

Industry Symposium on 10 February 2026

Digital Recordings

Indicative Schedule of Work

Schedule of Informal Consultations of STSC Working Groups

Working Group on the Use of Nuclear Power Sources in Outer Space
  • 5 February 2026, 1:10-2:00 p.m. Vienna time/CET in room M6 of the VIC (MS Teams hybrid connection available to WG members)
  • 6 February 2026, 1:10-2:50 p.m. Vienna time/CET in room M6 of the VIC (MS Teams hybrid connection available to WG members)
  • 9 February 2026, 1:10-2:00 p.m. Vienna time/CET in room M6 of the VIC (MS Teams hybrid connection available to WG members)
  • 10 February 2026, 9:00-9:50 a.m. Vienna time/CET in room M6 of the VIC (MS Teams hybrid connection available to WG members)
  • 11 February 2026, 1:10- 2.00 p.m. Vienna time/CET in room M6 of the VIC (MS Teams hybrid connection available to WG members) - TBC
Working Group on the Long-term Sustainability of Outer Space Activities
  • 4 February 2026, 2:00-2:50 p.m. Vienna time/CET in room M2 of the VIC (MS Teams hybrid connection available to WG members)
  • 5 February 2026, 2:00-2:50 p.m. Vienna time/CET in room M2 of the VIC (MS Teams hybrid connection available to WG members)
  • 9 February 2026, 2:00-2:50 p.m. Vienna time/CET in room M2 of the VIC (MS Teams hybrid connection available to WG members)
  • 10 February 2026, 2:00-2:50 p.m. Vienna time/CET in room M2 of the VIC (MS Teams hybrid connection available to WG members)

Schedule of Informal Consultations

Expert Group on Space Situational Awareness
  • 3 February 2026, 2:00-2:55 p.m. Vienna time/CET in room M2 of the VIC (MS Teams hybrid connection available to EG members)
  • 5 February 2026, 9:00-10:00 a.m. Vienna time/CET in room M2 of the VIC (MS Teams hybrid connection available to EG members)
  • 9 February 2026, 9:00-10:00 a.m. Vienna time/CET in room M2 of the VIC (MS Teams hybrid connection available to EG members)
Action Team on Lunar Activities Consultation
  • 2 February 2026, 13:00-14:00, Vienna time/CET in Room M2, M-Building, VIC (MS Teams hybrid connection available to ATLAC members)
  • 4 February 2026, 13:00-14:00, Vienna time/CET in Room M2, M-Building, VIC (MS Teams hybrid connection available to ATLAC members)
  • 6 February 2026, 09:00-10:00, Vienna time/CET in Room M2, M-Building, VIC (MS Teams hybrid connection available to ATLAC members)
  • 10 February 2026, 13:00-14:00, Vienna time/CET in Room M2, M-Building, VIC (MS Teams hybrid connection available to ATLAC members)
  • 12 February 2026, 13:00-14:00, Vienna time/CET in Room M2, M-Building, VIC (MS Teams hybrid connection available to ATLAC members)

Schedule of other meetings

International Asteroid Warning Network (IAWN)
  • 3 February 2026, 10:00 a.m.- 6 p.m.. Vienna time/CET, room M6 of the VIC (MS Teams hybrid connection available to IAWN members)
Space Mission Planning Advisory Group (SMPAG)
  • 4 February 2026, 9:30 a.m.- 6.00 p.m.. Vienna time/CET, room M6 of the VIC (MS Teams hybrid connection available to SMPAG members)
  • 5 February 2026, 9:30 a.m.- 11.00 a.m. Vienna time/CET, room M6 of the VIC (MS Teams hybrid connection available to SMPAG members)
Space and Global Health Network (SGHN)
  • 5 February 2026, 3:00 p.m.- 4.00 p.m.. Vienna time/CET, room MOE24 of the VIC (MS Teams hybrid connection available to delegations and SGHN members)
  • 5 February 2026, 4:00 p.m.- 5.00 p.m. Vienna time/CET, room MOE24 of the VIC (MS Teams hybrid connection available to delegations and SCHN members) - Space and Health Curriculum Task Force

Side event information (information will continue to be updated as details are confirmed)

Date Side Event Information
Monday
02.02.2026		 Shaping the Future of International Norms for Space Debris: A Collaborative Approach
A joint side event co-organized by Japan and the Office for Outer Space Affairs
From 13:00 - 14:00 Vienna Vienna Time (CET), Room M3 at the Vienna International Centre and via virtual connection

Promoting the Airspace Integration of Space Activities
A side event organized by the Office for Outer Space Affairs
From 14:00 - 15:00 Vienna time (CET), Room M3 at the Vienna International Centre and via virtual connection
Tuesday
03.02.2026		 Live Streaming of KiboCUBE Satellite Deployment from the International Space Station  
A joint side event co-organized by Japan, Mexico, and the Office for Outer Space Affairs
From 9:00 to 10:00 Vienna Time (CET), Room M5 at the Vienna International Centre

Freedom250: American Leadership in Space Meet & Greet With U.S. Astronaut Stephen Bowen
A side event organized by the United States 
From 13:30 to 14:30 Vienna Time (CET), behind M-plenary coffee area at the Vienna International Centre 

COPUOS 2026-27 - Italian Presidency Program Presentation: Targets and Sharings
A side event organized by Italy
From 14:00 to 15:00 Vienna Time (CET), Room M3 at the Vienna International Centre
Wednesday
04.02.2026		 Harnessing Japan's Digital Twin, AI, Open Data in Disaster Management 
A side event organized by the Office for Outer Space Affairs
From 09:00 to 10:00 Vienna Time (CET), Room M3 at the Vienna International Centre and via virtual connection

Ensuring Responsible AI in Space and Earth Observation: From Principles to Practice
A side event organized by the Office for Outer Space Affairs
From 13:00 to 14:00 Vienna Time (CET), Room M3 at the Vienna International Centre and via virtual connection

The Role of Europe in International Space Cooperation 
A joint side event co-organized by France and the European Space Policy Institute
From 18:15 to 19:15 Vienna Time (CET), at the European Space Policy Institute premises. 
Registration link
Thursday
05.02.2026		 Lunar Debris and Disposal - What is the issue and why does it matter?
A joint side event co-organized by the United Kingdom, Germany, Japan, the Republic of Korea, and the United States
From 13:00 to 14:00 Vienna Time (CET), Room M3 at the Vienna International Centre and via virtual connection

The Space4Ocean Alliance
A joint side event co-organized by the Office for Outer Space Affairs and the Maldives Space Research Organization
From 14:00 to 15:00 Vienna Time (CET), Room M3 at the Vienna International Centre and via virtual connection
Friday
06.02.2026		 Expanding Human Access to Space with VAST's Haven 1 International Consortium
A side event organized by the Office for Outer Space Affairs
From 13:00 to 14:00 Vienna Time (CET), Room M3 at the Vienna International Centre

Friends of Sites of Special Scientific Interest (SSSI) on the Moon
A joint side-meeting open to all delegations co-hosted by COSPAR, IAU, IAA, and MVA
From 14:00 to 15:00 Vienna Time (CET), Room M0E24 at the Vienna International Centre and via virtual connection
Monday
09.02.2026		  
Tuesday
10.02.2026		 Dark and Quiet Skies: From Science to Policy
A side event organized by the Office for Outer Space Affairs
From 9:00 to 10:00 Vienna Time (CET), Press Room of the M Building at the Vienna International Center and via virtual connection
Wednesday
11.02.2026		 Safegarding Space: Environmental Issues, Risks, and Responsabilities
A joint side event co-organized by the UN Environment Programme and the Office for Outer Space Affairs
From 14:00 to 15:00 Vienna Time (CET), Press Room of the M Building at the Vienna International Center and via virtual connection
Thursday
12.02.2026		  
Friday
13.02.2026		  

 

APPLICATIONS TO ATTEND THE 63RD SESSION OF STSC AS AD HOC OBSERVER

STSC 2025 SESSION PAGE

BRIEFING ON PREPARATIONS FOR THE UPCOMING 2026 COMMITTEE ON THE PEACEFUL USES OF OUTER SPACE (COPUOS) CYCLE

The United Nations Office for Outer Space Affairs, in its capacity as the secretariat of COPUOS and its subcommittees, held a briefing on preparations for the upcoming 2026 COPUOS cycle. The Briefing took place on Thursday, 6 November 2025, 13:30 -15:30 CET (1.30 - 3.30 p.m. Vienna time), in room CR-7 of the Vienna International Centre and on MS Teams. You may access the briefing presentations:

BRIEFING ON PREPARATIONS FOR THE SIXTY-THIRD SESSION OF THE SCIENTIFIC AND TECHNICAL SUBCOMMITTEE (STSC)

The United Nations Office for Outer Space Affairs will hold a further briefing dedicated to the sixty-third STSC session.

The Briefing is scheduled for Thursday, 15 January 2026, 14:30-16:00 CET (2.30 - 4.00 p.m. Vienna time), in room CR-7 of the Vienna International Centre and on MS Teams. You can access the briefing presentation here .

Session Documents

Annotated Provisional Agenda (including indicative schedule of work) (A/AC.105/C.1/L.426)

A/AC.105/C.1/L.426

 

General Assembly Resolution: International cooperation in the peaceful uses of outer space (A/RES/80/76)

A/RES/80/76

 

Final Report of the COPUOS 68th session (A/80/20)

A/80/20

 

Final Report of the 62nd session (A/AC.105/1338)

A/AC.105/1338

 

Series: A/AC.105/

A/AC.105/

 

Series: A/AC.105/C.1/

A/AC.105/C.1/.

 

 

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