NASA Considers Cheaper Ways To Retrieve Mars Samples | How Does A Hula Hoop Stay Up?

Sample Collection

The Perseverance rover has successfully collected over 20 samples from Mars, including rocks, sand, and air. These samples are stored inside the rover, with some strategically placed on the Martian surface as a contingency. Jim Bell explains that the selection process for these samples involves heated discussions among scientists, all working towards the goal of understanding Mars' history and potential for past life 1. The samples are carefully chosen from areas believed to have been habitable, such as ancient deltas and crater lakes, which may preserve evidence of past life 2.

Unless something just gets up and walks in front of our cameras, we don't actually have any evidence of life on Mars.

--- Jim Bell

The aim is to bring these samples to Earth for detailed analysis in cutting-edge laboratories, similar to how early life on Earth is studied 3.

   

Sample Return

NASA's Mars Sample Return mission faces significant challenges in bringing Martian samples back to Earth. The original plan was deemed too costly and time-consuming, prompting NASA to explore alternative strategies. Jim Bell highlights that the mission involves a complex series of spacecraft handoffs, akin to a relay race, to transport the samples back 4. To cut costs, NASA is considering using heritage components and involving commercial space companies like SpaceX 5.

The frustrating part is it's been a couple years now that we've been trying to figure out how to get this mission on the books.

--- Jim Bell

The best-case scenario for returning the samples is the late 2030s, but the final decision on the plan will be left to the next administration 4.