Bacteria that can align themselves with the Earth’s magnetic field have been found in a new habitat. Previously spotted on land and in shallow waters, these magnetotactic bacteria have now been confirmed to thrive in the depths of a hydrothermal vent. Despite the challenging conditions, the bacteria were able to adapt and survive in an environment that was not ideal for their typical needs.
Magnetotactic bacteria are of interest not only for the role they play in Earth’s ecosystem but also in the search for extraterrestrial life. Evidence of their existence can remain in rocks for billions of years. Their magnetic inclinations can also provide a record of how magnetic poles have shifted over time. This new discovery brings hope to researchers that the magnetic bacteria might be found in yet more unexpected locations, on Earth and perhaps even on Mars.
Mars is the second smallest planet in our solar system and the fourth planet from the sun. It is a dusty, cold, desert world with a very thin atmosphere. Iron oxide is prevalent in Mars’ surface resulting in its reddish color and its nickname “The Red Planet.” Mars’ name comes from the Roman god of war.
