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

NASA has unveiled two revamped plans to bring Mars samples to Earth in the 2030s, reducing costs by nearly half from its initial $11 billion proposal while expediting the timeline.

The Mars Sample Return program has been way over budget and, according to NASA's administrator, has been "out of control." Now, the agency is exploring new options to get its Martian rock and dust samples back home to Earth.

NASA is exploring two potential strategies to bring Mars samples back to Earth, aiming to simplify and reduce the cost of the mission.

NASA has arrived at two ways of returning samples collected on Mars to Earth. Now, the agency will test the options to see if the cache can make it back in the 2030s.

NASA said in its announcement it is changing the plan for the spacecraft that will land on Mars to retrieve the samples and exploring two new, different options. One of the option

The agency has collected 30 samples on the red planet but the cost of getting them back had delayed the Mars Sample Return mission. It was initially estimated at $11 billion, with a 2040 return date: a price tag and timeline that administrator Bill Nelson explained was “simply unacceptable.

NASA is exploring new technology they hope will make it possible for them to collect a sample from Mars and bring it back to Earth.

To maximize chances of successfully bringing the first Martian rock and sediment samples to Earth for the benefit of humanity, NASA announced Tuesday a new approach to its Mars Sample Return Program.