20+ Unsettling Facts About Mars Are Making Us Question What's Really Out There

Will we ever put a man on Mars? Well, given our advancing technology and shrinking natural resources on Earth, some futurists have proposed colonizing our neighboring planet. Well, that's easier said than done. The Red Planet is radically different from Earth, and if we do try to start a new society there, we need to know every hazard they'll face.

1. Signs Of Water

We all know Earth is the only planet in our solar system capable of sustaining human life, and that's largely because our home has a sufficient amount of water. It's clear when we look at a photo of Mars that the landscape is dry and barren. However, evidence suggests it wasn't always that way.

NASA's Photos

The terrain on Mars' surface reveals that the planet, at one time, had flowing water! There were several spacecraft sent by NASA to investigate the surface of the Red Planet, and they've sent back photos of long deep grooves that could have only been created by the power of flowing water. Could it still be there?

2. Frozen Water Exists

The rovers NASA sent to Mars over the years were tasked with several different missions while they traversed the rocky terrain, and one of them was keeping an eye out for any signs of life. The presence of water always indicates possible life, and although Mars doesn't have any flowing water, the poles contain some in a specific state.

Icy Poles

Patches of frozen water lie at both the north and south poles, and scientists hope these imply that there are other ice blocks around the planet as well. The thin atmosphere prevents the water from thawing, but questions still remain as to whether there are certain times of the year the ice may melt slightly and allow microbes to grow.