This session will present and discuss particular scientific goals that are enhanced or enabled by combining the Rubin data products with observations from other facilities, and by coordinating Rubin's observing strategy with that of external facilities. Synergies with Euclid will be a focus, and an overview of the recent Rubin-Euclid Derived Data Products Working Group will be presented.

We are soliciting questions in advance for this session. A long-form comment box is available at the end of this form.

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