<table><caption>**Table A1.** Summary of the missions and mission concepts considered in this publication with strong dust-heliosphere synergies.</caption><thead><tr><th>Mission / Concept</th><th>Version</th><th>Period of flight</th><th>Orbit</th><th>Primary science goals</th></tr></thead><tbody><tr><td>IMAP</td><td>McComas et al. (2018)</td><td>2025–</td><td>Sun-Earth L<sub>1</sub></td><td>Composition and properties of the LISM (incl. dust); dynamics/evolution of the heliosheath; interaction of solar wind magnetic field and interstellar magnetic field; particle injection and acceleration processes</td></tr><tr><td>ISP</td><td>Brandt et al. (2022); ISP (2023)</td><td>2036–2086+</td><td>Escape trajectory</td><td>Global nature of the heliosphere: dynamics & evolution, evolutionary history; properties of the ism: gas, dust, magnetic field, low-energy cosmic rays; exploration of the large-scale circumsolar dust debris disk; flyby observations of Kuiper Belt objects and planetesimals; unobscured mapping of the cosmic infrared background</td></tr><tr><td>DOLPHIN (2022)</td><td>Sterken (in preparation)</td><td>2031–2035+</td><td>incl. 23° at 1 AU</td><td>ISD: composition, abundances, size distribution and its modulation by the heliosphere, dust-heliosphere interaction and physics (incl. PUI), role of dust/PUI in heliosphere-LISM pressure balance; structure and time-variable properties of the zodiacal dust cloud; composition of cometary dust</td></tr><tr><td>SunCHASER</td><td>Posner et al. (2021)</td><td>tbd</td><td>incl. 14° at Sun-Earth L<sub>4</sub>, potentially also at L<sub>5</sub> and L<sub>1</sub></td><td>Solar energetic particle forecasting; improve model of inner heliosphere solar wind and magnetic field; long-term forecasting of solar activity; dust populations in near-Sun environment</td></tr><tr><td>Lunar Gateway</td><td>Sterken (in preparation), Wozniakiewicz et al. (2021)</td><td>tbd</td><td>lunar halo orbit</td><td>presence/absence of human-made debris in lunar orbit; composition and fluxes of asteroidal and cometary dust, separately; ISD: composition, species abundances, size distribution, morphology, directionality; organic component of dust grains; shape, dynamics and physics of heliosphere</td></tr></tbody></table>

<footnote n="1">¹Institute for Particle Physics and Astrophysics, Physics Department, ETH Zürich, Wolfgang-Pauli Strasse 27, Zürich 8093, Switzerland</footnote>

<footnote n="2">²Center of Space Research and Technology, Academy of Athens, 4, Soranou Efesiou str., 11527 Papagos, Athens, Greece</footnote>

<footnote n="3">³Institute of Earth Sciences, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 234-236, D-69120 Heidelberg, Germany</footnote>

<footnote n="4">⁴Institute Space Systems (IRS), University Stuttgart, Pfaffenwaldring 29, D-69168 Stuttgart, Germany</footnote>

<footnote n="5">⁵Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA</footnote>

<footnote n="6">⁶Institute of Experimental and Applied Physics (IEAP), Faculty of Mathematics and Natural Sciences, Christian-Albrechts-University of Kiel, Leibnizstrasse 11-19, D-24118 Kiel, Germany</footnote>

<footnote n="7">⁷Physics Institute, University of Bern, CH-3012 Bern, Switzerland</footnote>

<footnote n="8">⁸Applied Physics Laboratory, The Johns Hopkins University, Laurel, MD 20723, USA</footnote>

<footnote n="9">⁹Institute of Geochemistry and Petrology, Department of Earth Sciences, ETH Zürich, Clausiusstrasse 25, CH-8092 Zürich, Switzerland</footnote>

<footnote n="10">¹⁰Department of Physics and Astronomy, University of Canterbury, Christchurch, 8020, New Zealand</footnote>

<footnote n="11">¹¹Institut de Recherche en Astrophysique et Planétologie (IRAP), 9 Av. du Colonel Roche, F-31400 Toulouse, France</footnote>

<footnote n="12">¹²Space Research Centre, Polish Academy of Sciences, Warsaw 00-716, Poland</footnote>

<footnote n="13">¹³Institute for Theoretical Physics IV, Chair for Space and Astrophysics, Ruhr-Universität Bochum, D-44780 Bochum, Germany</footnote>

<footnote n="14">¹⁴Bay Area Environmental Research Institute, NASA Research Park, Moffett Field, CA 94035, USA</footnote>

<footnote n="15">¹⁵Center for Theoretical Astrophysics, Departments of Astronomy and Physics, University of Illinois, Urbana, IL 61801, USA</footnote>

<footnote n="16">¹⁶University of Chicago, Astronomy and Astrophysics Center, 5640 S Ellis Ave, Chicago, IL 60637, USA</footnote>

<footnote n="17">¹⁷Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO 80303, USA</footnote>

<footnote n="18">¹⁸Institute of Geological Sciences, Freie Universität Berlin, D-12249 Berlin, Germany</footnote>

<footnote n="19">¹⁹Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, D-37077 Göttingen, Germany</footnote>

<footnote n="20">²⁰Department of Physics and Astronomy, University of Iowa, Iowa City, Iowa, IA 52242, USA</footnote>

<footnote n="21">²¹JILA, University of Colorado, Boulder, CO 80305-0440, USA</footnote>

<footnote n="22">²²Astrophysical and Planetary Sciences Department, University of Colorado Boulder, CO 80305, USA</footnote>

<footnote n="23">²³Astronomy Department, Boston University, Cambridge, Massachusetts, MA 02215, USA</footnote>

<footnote n="24">²⁴Space Sciences Laboratory, University of California at Berkeley, Berkeley, CA 94720, USA</footnote>

<footnote n="25">²⁵Astronomy Department, Van Vleck Observatory 101, Wesleyan University, 96 Foss Hill Drive, Middletown, CT 06459, USA</footnote>

<footnote n="26">²⁶MIT Kavli Inst. for Astroph. and Sp. Res., 77 Massachusetts Avenue, McNair Building (MIT Building 37), Cambridge, MA 02139, USA</footnote>

<footnote n="27">²⁷Astrophysics Group, Imperial College London, Prince Consort Rd, London SW7 2BZ, UK</footnote>

<footnote n="28">²⁸Department of Astrophysical Sciences, Princeton University, Princeton, NJ 08544, USA</footnote>

<footnote n="29">²⁹Center for Astrophysics, High Energy Astrophysics Division, Harvard and Smithsonian, 60 Garden Street, MS 04, Cambridge, MA 02138-1516, USA</footnote>

<footnote n="30">³⁰Institute of Applied Physics, University of Bern, Sidlerstrasse 5, 3012 Bern, Switzerland</footnote>

<footnote n="31">³¹Oeschger Center for Climate Change Research, University of Bern, Hochschulstrasse 4, 3012 Bern, Switzerland</footnote>

<footnote>This paper has been typeset from a TeX/Latex file prepared by the author.</footnote>