Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very similar to classic river deltas on Earth. These are traces of rivers that ...

"Mars is still the Red Planet. It’s just that our understanding of why Mars is red has been transformed." When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...