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Special Issues

Materials 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

Exploring Low-Frequency Gravitational Wave Sources: Waveforms, Detection and Sciences

Guest Editors: Wenbiao Han, Ziren Luo, Shucheng Yang
5 articles | Viewed by 5,756

Deadline: 31 December 2025

Open for Submission

Current Status of the Hubble Tension

Guest Editors: Giovanni Montani, Eleonora Di Valentino, Nakia Carlevaro
4 articles | Viewed by 8,051

Deadline: 31 December 2025

Open for Submission

Variable Stars in the 21st Century: From Microvariability to Megavariability

Guest Editors: Laszlo Szabados, Tamas Szalai
5 articles | Viewed by 5,551

Deadline: 31 December 2025

Open for Submission

Advances in Studies of Galaxies at High Redshift

Guest Editor: Krisztina Éva Gabányi
5 articles | Viewed by 6,492

Deadline: 31 December 2025

Open for Submission

Challenges and Future Directions in Neutron Star Research

Guest Editors: Polychronis Koliogiannis, Charalampos Moustakidis
2 articles | Viewed by 1,591

Deadline: 31 December 2025

Open for Submission

Astrophysics and Cosmology at High Z

Guest Editors: Júlio César Fabris, Hermano Velten
1 article | Viewed by 362

Deadline: 31 December 2025

Open for Submission

Gamma-Ray Bursts: Unveiling the Mysteries of the Universe’s Most Powerful Explosions

Guest Editors: Yongfeng Huang, He Gao, Liang Li, Jinjun Geng
3 articles | Viewed by 1,796

Deadline: 31 December 2025

Open for Submission

Geometric Theories of Gravity

Guest Editor: László Árpád Gergely
3 articles | Viewed by 1,439

Deadline: 31 December 2025

Open for Submission

Studies in Properties of AccretionEjection Phenomena Around Black Holes

Guest Editors: Chandra Singh, Kaushik Chatterjee, Zhiyuan Pei
Viewed by 153

Deadline: 31 December 2025

Open for Submission

Magnetized Dense Matter in Compact Stars: From Fundamental Properties to Astrophysical Observables

Guest Editors: Efrain J. Ferrer, Vivian de la Incera, Cristina Manuel
1 article | Viewed by 809

Deadline: 31 December 2025

Open for Submission

Quantum Gravity Phenomenology: Insights and Advances

Guest Editor: Iarley P. Lobo
2 articles | Viewed by 2,040

Deadline: 31 December 2025

Open for Submission

BGL2025: The 13th Bolyai–Gauss–Lobachevsky Conference on Non-Euclidean Geometry and Its Applications

Guest Editors: Taoufik Ouali, Tiberiu Harko, László Jenkovszky, Ahmed Errahmani, Amine Bouali
2 articles | Viewed by 1,680

Deadline: 30 December 2025

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Universe - ISSN 2218-1997