“Everyone is inspired by this because it’s becoming real.”

Sending astronauts to the red planet will be a decades-long activity and cost many billions of dollars. So why should NASA undertake such a bold mission?

A new report published Tuesday, titled “A Science Strategy for the Human Exploration of Mars,” represents the answer from leading scientists and engineers in the United States: finding whether life exists, or once did, beyond Earth.

“We’re searching for life on Mars,” said Dava Newman, a professor in the Department of Aeronautics and Astronautics at Massachusetts Institute of Technology and co-chair of the committee that wrote the report, in an interview with Ars. “The answer to the question ‘are we alone‘ is always going to be ‘maybe,’ unless it becomes yes.”

The report, two years in the making and encompassing more than 200 pages, was published by the National Academies of Sciences, Engineering, and Medicine. Essentially, the committee co-chaired by Newman and Linda T. Elkins-Tanton, director of the University of California, Berkeley Space Sciences Laboratory, was asked to identify the highest-priority science objectives for the first human missions to Mars.

...read more at arstechnica.com