一些陨石是在燃烧和裂变的过程中来到地球的。着陆后，有的被及时发现，有的长时间找不到，静静地躺在某个不知名的角落里。因此，陨石对世界来说纯属天意，谁被发现是一种缘分，能遇见谁就不问了。直到现代科学研究表明，有些陨石含有铁、镍等金属，有些是磁性的，有些很强，当然有些很弱。现代医学研究表明，磁性是人类生存的重要因素，被称为继阳光、空气和水之后的第四大因素，陨石是释放这种重要元素的天然来源。
在所有的陨石中，火星陨石是最珍贵的陨石之一，它关系到整个宇宙环境。在整个太阳系中，火星与地球相似，可能有生命存在，因此人类对火星的探测一直有着强烈的关注和兴趣。登陆火星表面的陨石已成为研究火星物质组成和岩浆演化的重要对象。因此，火星陨石不仅可以为科学家研究火星的地质历史提供手资料，而且可以为科学家研究火星上是否存在生命提供更多线索。可见，火星陨石对人类意义重大，名副其实。
火星陨石“艾伦—希尔斯84001”在美国宇航局科学家利用高分辨率电子显微镜对做出的最新分析显示，这块陨石晶体结构中的大约25%确实是由细菌形成的。这一最新结论提供了迄今为止火星曾存在生命的最有力证据。“来自火星的生命痕迹”又一次引起了全世界的关注。
Some meteorites came to earth in the process of combustion and fission. After landing, some were found in time, some could not be found for a long time, lying quietly in an unknown corner. Therefore, meteorites are purely Providence to the world. It's a kind of predestination who is found. No matter who you can meet. Until modern scientific research shows that some meteorites contain iron, nickel and other metals, some are magnetic, some are very strong, and of course some are very weak. Modern medical research shows that magnetism is an important factor for human survival, known as the fourth major factor after sunlight, air and water. Meteorite is the natural source of this important element.
Among all meteorites, Martian meteorite is one of the most precious, which is related to the whole cosmic environment. In the whole solar system, Mars is similar to the earth, there may be life, so human exploration of Mars has been a strong concern and interest. Meteorite landing on the surface of Mars has become an important object to study Martian material composition and magma evolution. Therefore, Martian meteorites can not only provide hand information for scientists to study the geological history of Mars, but also provide more clues for scientists to study whether there is life on Mars. It can be seen that Martian meteorites are of great significance to human beings, worthy of the name.
The latest analysis of the Martian meteorite "Allen hills 84001" by NASA scientists using a high-resolution electron microscope shows that about 25% of the crystal structure of the meteorite is actually formed by bacteria. This latest conclusion provides the most powerful evidence for the existence of life on Mars so far. "Traces of life from Mars" has once again attracted worldwide attention.