Boulder (Colorado): Life on Mars has always been a subject of countless speculations, both amongst scientists as well as the general public. A recent study sheds some light on whether life may have existed on Mars. The study, published in ‘Frontiers in Astronomy and Space Science’, reported that a few specialist microbes survive conditions analogous to those of Mars’ early history and this may be thanks to a broad range of adaptations. The hydrothermal crater lake of the Poas volcano in Costa Rica is known to be one of the most hostile habitats on the planet. The water is ultra-acidic, full of…