george duval was 99 years old. >>> this seems like the space equivalent of jay-z and kanye. a nasa camera onboard the hubbell space telescope has actually recorded two galaxies colliding. that's vv 340 north on top and that would be vv 340 south on the bottom of your screen. we've really caught them, it turns out, at a good time. they will eventually merge into a milky wayesque mess, but don't wait up for it. it will take millions of years to come together. >>> up next here tonight, if you're one of those people who gets along with everybody at work, it may be costing you at work. >>> finally tonight, you've heard that expression, nice guys finish last. leo derocher always got the credit for that one. well, it turns out there is a new study from the university of notre dame that seems to back that up, where both men and women are concerned. it seems that being one of those people who gets along with your co-workers gets you a smaller paycheck in the end than the other people who are not as agreeable. our report tonight from nbc's chris jansing. >>> there you are, emily. how