The sun and its retinue of planets drift as a group through the vast gulfs of space that separate the stars. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
Years of science fiction have produced a mindset that it is human destiny to expand from Earth, to the Moon, to Mars, to the stars. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
No one can deny the excitement of visiting another world. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
In the past, on Earth, it has largely been to exploit foreign resources and to expand the domestic territory. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
It would be a pity if, frustrated by the price of travel, we elected to become a society that never made contact, that never gave SETI a fair chance. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
The factor most ignored in discussing interstellar flight is the kinetic energy that must be invested in the ship to make its tons of matter move at a substantial fraction of the speed of light. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
Present annual world energy consumption is about equal to the annihilation energy of 4 tons of matter. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
Above all, I would not expect a wise race, at great expense, to set loose an army of self-replicating robots. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
Antimatter is not a source of energy for us, it’s a method of storing energy, compact but inefficient. Help us to share this great article. Your friends will appreciate it! 0share Facebook0 Twitter0 Pinterest0 LinkedIn0 Flipboard Tumblr0 Mix
