Discovery of "Leopard Spots" on Mars
NASA has announced that the analysis of unusual markings on a rock on Mars, referred to as "Leopard Spots", contains the clearest signs so far that life on the red planet once existed. The space agency’s endurance Rover showed that these markings contain minerals that can be a by-product of microbes on Earth.
Analysis of the Markings
The analysis of the unusual markings by the endurance Rover revealed that they contain minerals such as iron, phosphorus, and sulfur, which are associated with microbial life. While scientists cannot rule out that the spots were caused by natural geological processes, the evidence still points to a biological origin.
Significance of the Discovery
Nicky Fox, deputy director of the Directorate for NASA’s science mission, stated that after a year of testing the evidence, it still points to a biological origin. The discovery is significant as it suggests that life on Mars may have existed over 3 billion years ago, when the planet was covered with lakes, rivers, and possibly even oceans.
The Endurance Rover’s Mission
The endurance Rover has been researching an old river delta in the Jezero crater since its landing in February 2021. The 3m long robot has taken detailed images of the surface, collected stone samples, and analyzed material with onboard instruments. In July last year, it came across a rock with leopard-like markings, which was in a canyon that was once carved through water.
Future Plans
The only way to confirm the discovery is to bring the samples back to Earth. However, Donald Trump’s cuts in NASA’s budget have led to a rethinking of plans to start a joint call mission to the European Space Agency. Sean Duffy, the acting NASA boss, stated that he is confident that they can fulfill their mission with the money they received in the budget, but he will ask for more money if necessary.
Implications of the Discovery
If further scientific analyzes on Mars confirm the presence of microbes, it will mean that life on Earth is not unique. According to NASA, each star in the night sky has an average planet that circles around it, and under the right conditions, some could also support life, possibly even intelligent extraterrestrial life.
