Each cycle begins with a Call for Proposals, followed by a condensed space project lifecycle, including typical design phases and reviews, culminating in the launch of the experiments and publication of the final reports.
The REXUS/BEXUS programme started in 2007 in its current form.
This diagram shows an example of overlapping cycles of the programme with the key milestones:

Click on diagram for bigger view
The detailed schedule for the current cycles of activities is as follows:
Cycle 16:
BEXUS 36/37 schedule
- 14-16 May 2025 – BEXUS Critical Design Reviews (CDRs), ESA, ESTEC
- Jul 2025 – BEXUS Integration Progress Reviews (IPRs) at student team sites
- Aug/Sep 2025 – BEXUS Experiment Acceptance Reviews (EARs) at student team sites (ESA/SNSA) or ZARM-FAB Bremen (DLR)
- 3-13 Oct 2025 – BEXUS Campaign (10 days), SSC, Esrange Space Center
- TBD Jan 2026 – Delivery of the final BEXUS Experiments reports
REXUS 35/36 schedule
- 4-6 Jun 2025 – REXUS Critical Design Reviews (CDRs), DLR Oberpfaffenhofen
- Aug 2025 – REXUS Integration Progress Reviews (IPRs) at student team sites
- Nov 2025 – REXUS Experiment Acceptance Reviews (EARs) at student team sites
- 8-12 Dec 2025 – Integration Week (ITW), ZARM-FAB Bremen
- 12-16 Jan 2026 – Bench Test, DLR Oberpfaffenhofen
- 2-14 Mar 2026 – REXUS Campaign (12 days), SSC, Esrange Space Center
- TBD Jun 2026 – Delivery of the final REXUS Experiments reports
Cycle 17:
- 18 Jun 2025 – Call for Experiment Proposals
- Sep 2025 – Letter of intent (DLR Only)
- 13 Oct 2025, 23:59 CEST – Deadline for Experiment Proposals
- 24-25 Nov 2025 – DLR Selection Workshop, DLR
- 25-27 Nov 2025 – ESA/SNSA Selection Workshop, ESA/ESTEC
- Dec 2025 – Cycle 17 selection announcement
- 26-30 Jan 2026 – Preliminary Design Reviews (PDRs) & Students Training Week, SSC, Esrange Space Center
BEXUS 38/39 schedule
- 4-8 May 2026 – BEXUS Critical Design Reviews (CDRs) and Soldering Course, ESA, ESTEC
- Jul 2026 – BEXUS Integration Progress Reviews (IPRs) at student team sites
- Aug/Sep 2026 – BEXUS Experiment Acceptance Reviews (EARs) at student team sites (ESA/SNSA) or ZARM-FAB Bremen (DLR)
- 2-12 Oct 2026 – BEXUS Campaign (10 days), SSC, Esrange Space Center
- Jan 2027 – Delivery of the final BEXUS Experiments reports
REXUS 37/38 schedule
- 8-12 Jun 2026 – REXUS Critical Design Reviews (CDRs) and Soldering Course, DLR Oberpfaffenhofen
- Aug 2026 – REXUS Integration Progress Reviews (IPRs) at student team sites
- Nov 2026 – REXUS Experiment Acceptance Reviews (EARs) at student team sites
- 7-11 Dec 2026 – Integration Week (ITW), ZARM-FAB Bremen
- 18-22 Jan 2027 – Bench Test, DLR Oberpfaffenhofen
- 1-13 Mar 2027 – REXUS Campaign (12 days), SSC, Esrange Space Center
- Jun 2027 – Delivery of the final REXUS Experiments reports
Cycle 18:
- 17 Jun 2026 – Call for Experiment Proposals
- Sep 2025 – Letter of intent (DLR Only)
- 8 Oct 2026, 12:00 CEST – Deadline for Experiment Proposals
- 23-24 Nov 2026 – DLR Selection Workshop, DLR
- 1-3 Dec 2026 – ESA/SNSA Selection Workshop, ESA/ESTEC
- Dec 2026 – Cycle 18 selection announcement






