Marsha FreemanSocial Links Navigation Latest articles by Marsha Freeman Earth's Dwindling Resources Drive Space Exploration By Marsha Freeman published 10 April 09 Author Marsha Freeman spotlights the life of German rocket engineer Krafft Ehricke in 'Extraterrestrial Imperative.' Space Books Get the Space.com NewsletterBreaking space news, the latest updates on rocket launches, skywatching events and more!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MORE FROM SPACE...1SpaceX launches 22 Starlink internet satellites from California2This Week In Space podcast: Episode 149 — SpaceX, Moon Missions, and Killer Asteroids?3Astronomers discover 'Quipu,' the single largest structure in the known universe420 years of satellite data reveal 'staggering' levels of glaciers melting, sea levels rising530 years after warp drives were proposed, we still can't make the math work
Earth's Dwindling Resources Drive Space Exploration By Marsha Freeman published 10 April 09 Author Marsha Freeman spotlights the life of German rocket engineer Krafft Ehricke in 'Extraterrestrial Imperative.'