Michio Kaku : President Obama 's changes to space program alter vision that 's held for 50 years . Kaku says cuts and new priorities make some critics believe NASA 's glory years over . Let private enterprise take over . Kaku : Program must rely on Russia until private firms can get our astronauts back in space . Comment:
Michio Kaku : President Obama 's changes to space program alter vision that 's held for 50 years . Kaku says cuts and new priorities make some critics believe NASA 's glory years over . Kaku : Program must rely on Russia until private firms can get our astronauts back in space . Comment: