Why don't we have more color images from Mars?

A color image requires a sensor with 3 receiver/per pixel (Red, Green and Blue detector). Then, the resolution of a color sensor is much lower than a black and white sensor.After take the picture, you need transmit it by radio to Earth. Transmit a

Who is the first man to go to Mars?

No person has yet set foot on Mars.The first

What would happen if Curiosity found proof of an ancient civilization that once existed on Mars?

Why and how would NASA "cover it up?"NASA is an organization which is made up of thousands of people with differing agendas. There's simply no way that a discovery that large would have been made and that the internal rumor mills at the agency wouldn't have been turning at the discovery.Within hours or days