Mars One has quietly stopped work on a pair of robotic precursor missions it once called "the first step in Mars One’s overall plan of establishing a permanent human settlement on Mars." Credit: Mars One artist's concept.

WASHINGTON — Mars One, the project to send humans to Mars on one-way missions that has attracted public interest and professional skepticism, said Dec. 7 is it delaying its timetable for those missions by several years.

To continue reading this article:

Register now and get
3 free articles every month.

You’ll also receive our weekly SpaceNews This Week newsletter every Friday. Opt-out at any time.

Sign in to an existing account

Get unlimited access to
SpaceNews.com now.

As low as $5 per week*

Cancel anytime. Sales tax may apply. No refunds. (*Billed quarterly)

See all subscription options

Get access based on your IP

Jeff Foust writes about space policy, commercial space, and related topics for SpaceNews. He earned a Ph.D. in planetary sciences from the Massachusetts Institute of Technology and a bachelor’s degree with honors in geophysics and planetary science...