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Special Issues

Marine Drugs publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process.

The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue polices and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

Open for Submission

HE/VHE Gamma-Ray in Extragalactic-Astrophysics: Observations, Models, and Cosmic Implications

Guest Editors: Zhiyuan Pei, Hubing Xiao
Viewed by 1

Deadline: 30 June 2026

Open for Submission

Mechanisms Behind Black Holes and Relativistic Jets

Guest Editor: Ioana Dutan
Viewed by 230

Deadline: 19 June 2026

Open for Submission

Bouncing Cosmology and the Early Universe: From Theory to Observations

Guest Editor: Arnab Dasgupta
1 article | Viewed by 2,113

Deadline: 31 May 2026

Open for Submission

Strong Gravitational Lensing in Observational Astrophysics and Cosmology

Guest Editor: Jingzhao Qi
Viewed by 140

Deadline: 31 May 2026

Open for Submission

String Theory and Particle Physics: A Themed Issue in Honor of Professor Ignatios Antoniadis on the Occasion of His 70th Birthday

Guest Editor: George K. Leontaris
Viewed by 234

Deadline: 31 May 2026

Open for Submission

Quantum Field Theory in Curved Spacetime and Its Implications for Cosmology, Blackholes and Quantum Gravity, 2nd Edition

Guest Editors: Korumilli Sravan Kumar, Joao Marto
Viewed by 374

Deadline: 15 May 2026

Open for Submission

Primordial Black Holes: Observational Strategies

Guest Editor: Jeremy Mould
1 article | Viewed by 738

Deadline: 3 May 2026

Open for Submission

Tensions, Anomalies, and Challenges in the Standard Cosmological Model

Guest Editors: John P. Ralston, Pavan Kumar Aluri
3 articles | Viewed by 2,655

Deadline: 30 April 2026

Open for Submission

General Relativity, Modified Theories of Gravity and Their Applications in Astrophysics

Guest Editors: Xin Wu, Wenbin Lin
2 articles | Viewed by 1,392

Deadline: 30 April 2026

Open for Submission

Top Quark Physics: Recent Developments and Future Directions

Guest Editors: Yajuan Zheng, Ian Lewis
Viewed by 131

Deadline: 30 April 2026

Open for Submission

Theoretical Physics and Cosmology: A Themed Issue in Honor of Professor Emilio Elizalde on the Occasion of His 75th Birthday

Guest Editors: Tanmoy Paul, Diego Sáez-Chillón Gómez
Viewed by 72

Deadline: 30 April 2026

Open for Submission

Magnetic Fields and Activity in Stars: Origins and Evolution

Guest Editor: Renada Konstantinova-Antova
2 articles | Viewed by 1,079

Deadline: 21 April 2026

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Universe - ISSN 2218-1997