Creationists have often pointed out that evolution is unscientific because it can never be proved by science to be true. It is not happening at present and without a time machine, they can never be sure that it happened in the past.

Certain "progressive creationists" have been accusing me of believing that the universe never had a beginning—that time, space, and matter have always existed in some form.

There has been much excitement recently regarding the stunning successes of America's two Mars Exploration Rovers (MERs). Landing on opposite sides of the Red Planet, Spirit and Opportunity have functioned almost flawlessly. Now it looks like they have found signs of past water activity, sulfate minerals, and salts in some rock samples.