I still think NASA should invest more in basic research on new methods for propulsion - such as something similar to 'anti-gravity'.
We will never get very far using chemical rockets no matter how good or well developed. The distances are just too vast, and the power/fuel requirements just too great.
We will never get very far using chemical rockets no matter how good or well developed. The distances are just too vast, and the power/fuel requirements just too great.
On this I disagree. Chemical, ion, VASMIR, nuclear, etc. are just fine for planetary exploration and exploitation. Stellar travel is just a pipe dream for the moment.