Can science answer moral questions?

[quote]Questions of good and evil, right and wrong are commonly thought unanswerable by science. But Sam Harris argues that science can — and should — be an authority on moral issues, shaping human values and setting out what constitutes a good life.[/quote] Just a heads up - I haven't watched the video before posting this, so I have no idea regarding its quality. But considering the fact that I advocate making ethics virtually synonymous with logic, I'll cast my vote for yes.