The agency will continue to discuss and assess a plan with Esa that will not only be cost-effective, but ensure key science objectives are met.

BBC: Esa-Nasa Mars missions' race against clock

Or are they, as supporters profess, cost-effective platforms essential to achieving critical foreign policy and security objectives?

FORBES: Where are the Carriers?

If some day you do reach the happy position of achieving your retirement savings objectives, you can reduce stress even further by putting some of that money into a low-cost annuity that will guarantee you a certain level of income for the rest of your life (options that cover a surviving spouse, or are indexed for inflation, are available but reduce annual income).

FORBES: Retirement