This concept has to be managed carefully ... the balance by helping us become a greener planet. Earth, after all, is our most ...

Even projecting ahead, futuristic propulsion concepts would only cut that ... insights into how we might improve life here on 'spaceship Earth,'" Organizing Committee architect and designer ...

Founder of rocket manufacturing company SpaceX, Elon Musk, might be able to turn this into a reality with a revolutionary earth-to-earth spaceship ... the earth-to-earth concept on social media.( ...