StarTalk Podcast: Cosmic Queries - Out There with Neil deGrasse Tyson

Cosmic Extremes

Neil deGrasse Tyson and Harrison Greenbaum explore the extremes of astrophysics, discussing the vastness of space, time, and dimensions. They are joined by Janna Levin, who adds depth to the conversation with her expertise on black holes and the large-scale universe. The trio considers the possibility of a finite universe, where traveling in a straight line could eventually bring you back to your starting point, akin to walking around the Earth 1.

It is conceivable that the universe is actually finite in the same sense that the Earth is finite.

--- Harrison Greenbaum

They also entertain the notion of an infinite universe, where our observable universe is just a small part of an endless expanse 2.

   

Astrophysical Banter

The episode is infused with humor as Harrison Greenbaum brings a light-hearted approach to complex astrophysical questions. He jokes about the possibility of making himself a regular on the show, much to the amusement of Neil deGrasse Tyson. The banter continues as they address questions from Patreon supporters, with Harrison humorously acknowledging the need to prioritize these inquiries 3.

That is kissing ass, you realize this.

--- Neil deGrasse Tyson

This playful interaction provides a refreshing contrast to the heavy scientific topics discussed, making the content more accessible and engaging 4.

   

Lightning Rounds

In a fast-paced lightning round, Neil deGrasse Tyson and Harrison Greenbaum tackle a series of rapid-fire questions, covering topics like white holes and the quest for knowledge. The concept of white holes, theoretical opposites of black holes, is briefly touched upon, sparking curiosity about their nature 5.

White hole. There you go.

--- Harrison Greenbaum

The discussion shifts to the philosophical, as Neil expresses a desire to know the answer to questions not yet asked, highlighting the importance of the scientific journey over simply finding answers 6.