Nowadays, there are not many missions devoted to ultraviolet astronomy, and when the HST will stop its operations, the only flying facility purely ultraviolet will be WSO-UV (to be launched in 2024/2025). In response of the Astro2020 Decadal Survey for astronomy and Astrophysics call for white papers organised by the National Academy of Sciences and the American Astronomical Society, a total of 65 white papers recognising the importance of the development of UV facilities were sent by the community; they are listed below and the full PDFs can be found in the bulletin of the AAS.

Weisz, Daniel     Near-Field Cosmology with the Lowest-Mass Galaxies
Sheikh, David    Method to aluminum-coat telescope mirrors in space for EUV-broadband astronomy
Kopparapu, Ravi Kumar    Exoplanet Diversity in the Era of Space-based Direct Imaging Missions
Juanola-Parramon, Roser    Solar System Science with Space Telescopes
Fox, Andrew    The Magellanic Stream as a Probe of Astrophysics
Fox, Andrew    Spectroscopic Observations of the Fermi Bubbles
Ramirez, Ramses    Habitable zone predictions and how to test them
Fossati, Luca    Ultraviolet Spectropolarimetry as a Tool for Understanding the Diversity of Exoplanetary Atmospheres
Roederer, Ian    The Potential of Ultraviolet Spectroscopy to Open New Frontiers to Study the First Stars
Chaufray, Jean-Yves    UV Exploration of the solar system
Scowen, Paul    Outline of Analysis Studies Conducted by NASA Cosmic Origins Program Analysis Group Members During the Past 10 Years
Carpenter, Kenneth    Stars at High Spatial Resolution
Perlman, Eric    Kiloparsec-scale Jets: Physics, Emission Mechanisms, and Challenges
Zemcov, Michael     Opportunities for Astrophysical Science from the Inner and Outer Solar System
Neveu, Marc     Investigating the Solar System’s Ocean Worlds with Next-Generation Space Telescopes
Bolatto, Alberto     Cold Gas Outflows, Feedback, and the Shaping of Galaxies
Clarke, John     Solar System Science with a Space-based UV Telescope
Cartwright, Richard     Exploring the composition of icy bodies at the fringes of the Solar System with next generation space telescopes
Lebouteiller, Vianney     ISM and CGM in external galaxies
Marin, Frédéric     The role of Active Galactic Nuclei in galaxy evolution: insights from space ultraviolet spectropolarimetry
France, Kevin     Detecting Protoplanets and Tracing the Composition and Evolution of Planet-forming Material with Large UV/Optical Observatories
Toloza, Odette     Understanding the evolution of close white dwarf binaries
Gaensicke, Boris     Evolved Planetary Systems around White Dwarfs
James, Bethan     Spatially Resolved UV Nebular Diagnostics in Star-Forming Galaxies
Price-Whelan, Adrian     Stellar multiplicity: an interdisciplinary nexus
Yan, Huirong     Precision measurement of magnetic field from near to far, from fine to large scales in ISM
Neiner, Coralie     Stellar physics with high-resolution UV spectropolarimetry
Lisman, Doug     Surveying the solar neighborhood for ozone in the UV at temperate rocky exoplanets
Calzetti, Daniela     How Do Stars Form? Open Questions on the Stellar Initial Mass Function
Rau, Gioia     Cool, evolved stars: results, challenges, and promises for the next decade
Hodges-Kluck, Edmund     How does dust escape from galaxies?
Gry, Cecile     Far- to near-UV spectroscopy of the interstellar medium at very high resolution and very high signal-to-noise ratio
Sahai, Raghvendra     Probing Strong Binary Interactions and Accretion in Asymptotic Giant Branch Stars
Kastner, Joel     The Early Evolution of Stars and Exoplanet Systems: Exploring and Exploiting Nearby, Young Stars
Youngblood, Allison     EUV observations of cool dwarf stars
Williams, Benjamin     Far Reaching Science with Resolved Stellar Populations in the 2020s
Tripp, Todd     On The Unique Value of Spectroscopy in the Deep Ultraviolet for Galaxy Evolution Studies
Youngblood, Allison     EUV influences on exoplanet atmospheric stability and evolution
Peeples, Molly     Understanding the circumgalactic medium is critical for understanding galaxy evolution
Clark, Christopher    Unleashing the Potential of Dust Emission as a Window onto Galaxy Evolution
Tumlinson, Jason    The Baryon Cycle, Resolved: A New Discovery Space for UV Spectroscopy
Matra, Luca    Exocometary Science
Osten, Rachel    Stellar X-ray Spectroscopy Addresses Fundamental Physics of Stellar Coronae, Accretion, and Winds, and Informs Stellar and Planetary Studies
Kartaltepe, Jeyhan    Assembly of the Most Massive Clusters at Cosmic Noon
Gordon, Karl    Interstellar Dust Grains: Ultraviolet and Mid-IR Extinction Curves
Günther, Hans M.    The fastest components in stellar jets
Voit, Mark    Circumgalactic Gas and the Precipitation Limit
Christiansen, Jessie    Understanding Exoplanet Atmospheres with UV Observations I: NUV and Blue/Optical
Harman, Chester    A Balancing Act: Biosignature and Anti-Biosignature Studies in the Next Decade and Beyond
Wang, Q. Daniel    The Panchromatic Circumgalactic Medium
Hinkel, Natalie    Stellar Characterization Necessary to Define Holistic Planetary Habitability
Brown, Peter    Keeping an Ultraviolet Eye on Supernovae
Roman-Duval, Julia    Metal Abundances and Depletions in the Neutral Interstellar Medium of Galaxies: the Local Volume as a Laboratory
Johnson, Jennifer    The Origin of the Elements Across Cosmic Time
Lehner, Nicolas    Following the Metals in the Intergalactic and Circumgalactic Medium over Cosmic Time
Lopez, Eric    Understanding Exoplanet Atmospheres with UV Observations II: The Far UV and Atmospheric Escape
Thilker, David    The Nature of Low-Density Star Formation
Reinhard, Christopher    The remote detectability of Earth's biosphere through time and the importance of UV capability for characterizing habitable exoplanets
Burchett, Joseph    Ultraviolet Perspectives on Diffuse Gas in the Largest Cosmic Structures
McCandliss, Stephan    Lyman continuum observations across cosmic time: recent developments, future requirements
Hagen, Lea    Spatially Resolved Observations of the Ultraviolet Attenuation Curve
Garcia, Miriam    Walking along Cosmic History: Metal-poor Massive Stars
Bonifacio, Piercarlo    Extremely metal-poor stars: the need for UV spectra
Heap, Sara    Understanding Cosmic Evolution: The Role of UV Spectroscopic and Imaging Surveys
Airapetian, Vladimir    Reconstructing Extreme Space Weather From Planet Hosting Stars