HELSINKI — China launched the last pair of backup satellites for its Beidou navigation system late Wednesday, with an eye on a future, upgraded system.

To continue reading this article:

Register now to read
3 free articles this month.

You’ll also receive our weekly Editor’s Choice, SpaceNews This Week and Opinions newsletters. Opt-out at any time.

Sign in to an existing account

Get unlimited access to SpaceNews.com, the SpaceNews app and our digital monthly magazine for less than $5 per week.

$280

On a campus or library network? Check for access.

Cancel anytime. Sales tax may apply. No refunds. Terms and conditions apply.

See all subscription options

Andrew Jones writes about China's space industry, including civilian programs, space science and exploration, policy, and commercial developments for SpaceNews, and writes the China Report newsletter. He has additional bylines in Scientific American,...