"You need so much water that we think these could be evidence of an ancient warmer and wetter climate where there was rain ...

Picture yourself as a NASA rover on Mars. As the Sun lowers itself towards the horizon, the pinkish sky gives way to a blue ...

Ancient shoreline features hint that water on Mars once formed a vast ocean.

Christiaan Huygens created the first recognizable drawings of Mars' surface features during the fall of 1659, an achievement made possible by his advancements in telescope manufacturing. His November ...