Extraterrestrial Life Planetary Sciences Habitability Exoplanets Search for Extraterrestrial Life Planetary Science Planetary Atmospheres Mars Exploration Origins of Life Search for Extraterrestrial Intelligence Extraterrestrial Intelligence Life Beyond Earth Space Exploration Intelligent Life Search for Life Conditions for Life Organic Chemistry Exobiology Life in Space Multiverse Theory Extraterrestrial Research Interstellar Communication Human Exploration Microbiology Origins of Celestial Bodies Carbon Compounds Historical Context Water on Planets Underground Oceans Human Evolution Planet Formation Chemical Processes UAPs Habitability Studies Chemical Reactions Human Presence in Space Impact Events Chemical Composition Search for Life in the Universe Life on Earth Ocean Moons Origin of Life Research Titan Life Potential Subsurface Ocean Detection of Signs of Life Microbial Life Life Detection NASA Panel on Unidentified Aerial Phenomena Exoplanet Studies Exoplanetary Science Molecular Formation Planetary Defense Potential for Life Technosignatures Planetary Conditions Asteroid Research Asteroids Life on Exoplanets Planetary Characteristics Human Spaceflight Planetary Formation Planetary Systems Planetary Exploration Extraterrestrial Impacts Chemical Compounds Space Missions Drake Equation