What are the primary goals of planetary science?
The primary goals of planetary science are to understand the formation and evolution of planets, moons, and other celestial bodies, to study their internal structures, atmospheres, and magnetic fields, to investigate the potential for life beyond Earth, and to explore planetary systems' potential for human exploration and utilisation.
How do scientists study planets that are millions of kilometres away?
Scientists study distant planets using telescopes, space probes, and rovers, which capture images and gather data on planetary atmospheres, surfaces, and compositions. Advanced technologies such as spectroscopy and radiometry help analyse the light and other signals emitted or reflected by these planets, providing detailed information about their properties.
What is the significance of studying the atmospheres of other planets?
Studying the atmospheres of other planets helps us understand their climate, weather patterns, and potential habitability. It assists in comparative planetology, offering insights into Earth's own atmospheric processes. Additionally, it aids in the search for extraterrestrial life by identifying biosignatures.
What is the role of robotic missions in planetary science?
Robotic missions play a crucial role in planetary science by gathering data from environments that are too hostile or distant for human explorers. They conduct in-situ analysis, capture high-resolution imagery, and relay extensive scientific information back to Earth. These missions enhance our understanding of planetary atmospheres, surfaces, and potential for life.
What are the main challenges faced in planetary exploration?
The main challenges in planetary exploration include extreme environmental conditions, vast distances requiring long-duration missions, limited communication windows with Earth, and ensuring spacecraft and instruments can autonomously handle unforeseen issues. Additionally, protecting planetary bodies from contamination and ensuring the safety of mission crews are significant concerns.