Laser-induced breakdown spectroscopy (LIBS) is one of the most popular laser based atomic spectroscopy techniques on the market today. Nowadays, LIBS is rapidly becoming an indispensable tool for elemental analysis and is generally viewed as a complementary technique to other elemental methods such as mass spectrometry. LIBS has been deployed in a wide range of industrial and scientific applications including on the surface of Mars, where over 200,000 LIBS spectra have been collected aboard of the Mars Science Laboratory Rover Curiosity. In addition to the extreme environments of the Martian surface, LIBS has also been used in similarly challenging environments here on earth such as industrial mining and scrapyard metal sorting. Therefore, it is critical that LIBS lasers are not only capable of meeting the pulse energy requirements of the application but are also designed for use in these harsh environments. In this blog post, we briefly review the basic of LIBS and then discuss how Er:Glass lasers are uniquely suited for LIBS applications in harsh environments.