Planetary Radar Astronomy

A special issue of Universe (ISSN 2218-1997). This special issue belongs to the section "Planetary Sciences".

Deadline for manuscript submissions: 30 September 2024 | Viewed by 1574

Special Issue Editors


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Guest Editor
1. Institute of Advance Study, Shenzhen University, Shenzhen 518060, China
2. Institute of Moon–Base Exploration and Observation, Shenzhen University, Shenzhen 518060, China
Interests: planetary radar astronomy; lunar and planetary radar detection; astronomical technology and methods; lunar and deep space exploration; lunar and planetary science; evolution of surface processes of solar system objects

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Guest Editor
Key Laboratory of Lunar and Deep Space Exploration, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
Interests: radio astronomy; techniques and methods; lunar and planetary microwave detection; satellite communications; radar astronomy

Special Issue Information

Dear Colleagues,

Planetary Radar Astronomy is a discipline that utilizes radar electromagnetic waves to study celestial bodies both within and beyond the solar system. It primarily focuses on planets, Moons, and small objects within the solar system, such as Earth, Jupiter, Saturn, Pluto, and others. Furthermore, it can also be applied to the study of exoplanets and stars outside our solar system. Through the use of planetary electromagnetic wave detection, we gain a better understanding of the internal structures, compositions, distribution of water resources, magnetic fields, atmospheres, and other physical properties of extraterrestrial bodies. This holds significant importance for humanity's search for habitable environments in the solar system.

With development of the Planetary Radar Astronomy field has broadened the spectrum of observational techniques. Observations in the field of Planetary Radar Astronomy heavily rely on ground-based and space-based radar instruments. Over the past decade, with the advancement of deep space exploration, rover-based radar observations have gradually become an indispensable new tool in the field of Planetary Radar Astronomy. For instance, Chinese lunar exploration missions such as Chang'e-3, Chang'e-4, and Chang'e-5, the Mars mission Tianwen-1, and the Perseverance rover mission to Mars all carried in-situ radar instruments.

This special issue primarily caters to the fields of Planetary Radar Astronomy, lunar and planetary science, lunar and planetary radar detection, and radar observations carried by missions like Chang'e-3, Chang'e-4, Chang'e-5, Tianwen-1, and the Perseverance rover mission. It also encompasses radar observations of celestial bodies within and beyond the solar system. We welcome contributions related to these areas, and we are open to submissions on any relevant topics to radar astronomy.

Dr. Chunyu Ding
Prof. Dr. Yan Su
Guest Editors

Manuscript Submission Information

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Keywords

  • radar astronomy
  • lunar and planetary science
  • lunar and planetary radar detection
  • lunar and deep space exploration
  • radar observations of planets within the solar system
  • radar observations of planets and stars outside the solar system
  • Chang’e-3/-4/-5, Tianwen-1 mission and perseverance rover mission

Published Papers (1 paper)

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Review

21 pages, 13555 KiB  
Review
Radar Observations of Liquid Water in the South Polar Region of Mars: Indications from Astrobiology Perspectives
by Junyi Zhou, Chunyu Ding, Siting Xiong, Yan Su, Jiawei Li, Mengna Chen and Shun Dai
Universe 2024, 10(1), 43; https://doi.org/10.3390/universe10010043 - 16 Jan 2024
Cited by 1 | Viewed by 1309
Abstract
In recent decades, extensive research has led to the understanding that Mars once hosted substantial liquid-water reserves. While the current Martian landscape boasts significant water-ice deposits at its North and South poles, the elusive presence of liquid-water bodies has remained undetected. A breakthrough [...] Read more.
In recent decades, extensive research has led to the understanding that Mars once hosted substantial liquid-water reserves. While the current Martian landscape boasts significant water-ice deposits at its North and South poles, the elusive presence of liquid-water bodies has remained undetected. A breakthrough occurred with the identification of radar-echo reflections at the base of the Martian South Pole, using MARSIS (Mars Advanced Radar for Subsurface and Ionospheric Sounding) in 2018. These radar echoes strongly suggest the presence of a highly concentrated liquid-water body. However, a counter-narrative has emerged, contending that the subterranean conditions beneath the ice cap, encompassing factors like temperature and pressure, may be inhospitable to liquid water. Consequently, alternative hypotheses posit that the observed bright echoes could be attributed to conductive minerals or water-absorbing clay-like materials. The ongoing discourse regarding the presence of liquid water beneath the southern polar ice cap is a hot topic in the realm of Martian exploration. The primary focus of this paper is to provide a comprehensive overview of Martian radar detection, the recent controversies regarding liquid water’s existence in the Martian South Pole, and the implications regarding the potential existence of Martian life forms in the water on Mars. The revelation of liquid water on Mars fundamentally suggests an environment conducive to the viability of Martian life, consequently furnishing invaluable insights for future exploratory endeavors in the pursuit of Martian biospheres. In addition, this paper anticipates the forthcoming research dedicated to Martian liquid water and potential life forms, while also underscoring the profound significance of identifying liquid water on Mars in propelling the field of astrobiology forward. Full article
(This article belongs to the Special Issue Planetary Radar Astronomy)
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