An exploding budget and an unraveling schedule spell disappointment for NASA's mission to learn more about Mars's history.

NASA hopes a revised plan will get Mars samples back to Earth faster and cost less than the agency's original plan.

NASA will investigate two new approaches to bring its Mars samples to Earth through a mission proposal that is less expensive ...

NASA announced Tuesday that it is exploring two options to move forward with its mission to return samples from Mars at a ...

NASA has arrived at two ways of returning samples collected on Mars to Earth. Now, the agency will test the options to see if ...

Previously, the Mars Sample Return mission had been estimated to cost around 11 billion dollars and would not return a sample ...

NASA's beleaguered Mars Sample Return program currently faces extreme costs of up to $11 billion and a timeline that could ...

NASA is weighing two options to return samples from Mars — one using proven technology and another that seeks help from ...

The Mars Sample Return mission has been ranked as the highest priority by planetary scientists, who hope to find signs of ...

Dozens of samples of rock and sediment collected from Mars that could be used to detect ancient microbial life could be ...

We're hurtling toward a new era of mega-rockets with enough power to send colonists to the red planet, but should we?