Bowersox and Cooke
As Ken Bowersox (left), acting associate administrator for human exploration and operations at NASA, defended the agency's architecture for Artemis, former associate administrator Doug Cooke (right) called instead for greater use of the larger SLS Block 1B rocket. Credit: Credit:NASA/Aubrey Gemignani

WAILEA, Hawaii — Members of a House committee expressed skepticism about NASA’s reliance on commercial launch vehicles to carry out human lunar landings by 2024 rather than an upgraded version of the Space Launch 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

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...