1
00:00:03,000 --> 00:00:23,000
A theoretical cosmologist is someone who asks deep questions, beginning with the earliest moments of the Universe, by using the laws of physics or trying to discover new laws of physics that are encoded in the information we can get from either the early or later Universe.

2
00:00:23,000 --> 00:00:43,000
The major aspect of a theoretical astrophysicist is that he or she is a blend of mathematician, physicist, and possibly chemist, and one applies all of those tools to try and understand the nature of the cosmos.

3
00:00:43,000 --> 00:01:06,000
Because there has been so much data that has been gathered, and because we are asking questions that can best be probed by various ambitious experiments, theoretical cosmologists are increasingly involved in the analysis of the information coming from space or from telescopes.

4
00:01:06,000 --> 00:01:21,000
We are now becoming more of experimentalists as well as theoreticians, but the basic underlying feature is the use of mathematics, physics, and in aid of that, a heavy dose of computation.