ALH84001 meteorite and life from Mars?

Have you ever heard of meteorite called ALH84001, or ever heard that Mars had life? This article will talk more about this information.

The last time you mentioned Mars, you may have heard of NASA landing and starting to explore on Mars. The goal of Curiosity is to find the right environment for life on this planet. Recently, renowned theoretical physicist Lawrence Krauss said that he would not be surprised if we really found evidence of. Krauss said there was a possibility that life on Mars had "spread" to the early Earth in the history of our planet, causing the life we ​​know today.

ALH84001 meteorite.

In his speech Krauss also mentioned in detail the science of discovering Antarctica, and certain (probably) bacteria that survived the eight-month journey in a rock. Although Krauss did not specify which Antarctic meteorites he was talking about, most likely he was referring to ALH84001 , a meteorite found in 1984.

This meteorite caught the eye in 1996 when scientists, led by NASA's David McKay, published an article in Science magazine saying there was evidence for the meteorite to show. 'life of primitive bacteria' from Mars . In particular, they used a high-power electron microscope and found patterns that follow them to match what was caused by bacterial life.

The statement of this team has encountered scientific skepticism. Allan Treiman of the Moon and Planet Research Institute says that even if the asteroid really shows evidence of life, the rock is likely to be infected by Antarctic life or by the process. meteorite treatment after it is found. John Bradley, an associate professor at the Georgia Institute of Technology, took his skepticism a step further: 'Unfortunately, there are too many signs in this fossil record on Earth, and potentially on the stars. Fire, too, looks very much like the signs of bacteria. But they are not unique to bacterial processes, " he told a NASA website.

NASA revisited the meteorite model in 2009 with more advanced equipment and argued that life is the most plausible explanation for those forms . In an article published in Geochimica et Cosmochimica Acta, the authors dismissed other theories about shock waves or heat affecting meteorites, based on their experiments.

It will take a long time to prove whether Mars has life, and ALH84001 meteorite remains an 'important clue' in this study.