While calling NASA’s “manned” space flight programs (such as [the International] Space Station) worthless with regards to science, Steven Weinberg calls NASA’s “unmanned” space flight programs (such as Martian robots Spirit and Opportunity robots and Hubble Telescope) very important to the advancement of science.
Steven Weinberg stated at the Tuesday, September 18, 2007 Science Writers’ Workshop called “Dark Energy: A Decade of Discovery and Mystery” at the Space Telescope Science Institute [home of the Hubble Space Telescope] in Baltimore, Maryland, U.S.A., “The International Space Station is an orbital turkey. No important science has come out of it. I could almost say no science has come out of it. And I would go beyond that and say that the whole manned spaceflight program, which is so enormously expensive, has produced nothing of scientific value.”