Let’s get something straight right away: there are no little green beings on Mars. Horror films about the Red Planet often show humans being eaten by something sinister and creature-like on Mars. Luckily, the reality is more subtle. Yes, we do have a hope of finding life on Mars — especially due to two new discoveries this year. But when we talk about life on Mars, we don’t mean monsters. We mean microbes.

— Read on curiosity.com/topics/why-the-2018-discoveries-on-mars-give-us-the-best-hope-of-life-yet-curiosity