Embark on a cosmic journey in this 42-minute lecture by Dr Queenie Chan titled 'Messengers from Outer Space!' Explore the fascinating world of meteorites, from their origins to their impact on Earth. Discover the difference between meteorites and interplanetary dust, learn about fireball observations and meteorite recovery techniques, and delve into the various types of meteorites, including those from Mars. Uncover the secrets hidden within carbonaceous chondrites, including their carbon content and soluble organics. Gain insights into the isotopic composition of these celestial visitors and understand how studying meteorites can provide valuable information about life on Earth and beyond.