Dr. Neil deGrasse Tyson, TV host and probably the world’s best-known astrophysicist, is scheduled as a keynote speaker at the 2014 PLUS Conference, November 5-7 in Las Vegas. (FYI – rates to attend the Conference increase after tomorrow, so register now and save!)

Recently we at PLUS Blog had the chance to chat with Dr. Tyson about the universe, his personal philosophies and other topics that we found interesting. In case you missed it, you can check out the previous interview clips here.

In our final clip from the interview we ask Dr. Tyson:

What is one thing you’ve learned recently about the universe that surprised you?

WARNING: Highly technical science content ahead.

Don’t miss your chance to hear Dr. Tyson speak live in November at Caesars Palace in Las Vegas – Rates increase on Saturday so register for the 2014 PLUS Conference today.