The most effective way to study the planets involves a combination of ground-based telescopes, space telescopes, and spacecraft missions. Ground-based observatories enable scientists to observe celestial phenomena and gather data on planetary atmospheres, temperatures, and surface conditions. Space telescopes, like Hubble, offer unobstructed views of planetary bodies without Earth's atmospheric distortion. Orbital missions, such as Mars rovers and Voyager spacecraft, provide direct data collection, allowing researchers to analyze geology, atmospheres, and potential for life. The integration of remote sensing, spectrometry, and imaging technologies enhances our understanding of planetary systems, thus answering fundamental questions about their formation and evolution within the solar system and beyond.