Mar 9th: My 8 Favorite Unsolved Mysteries of the Universe

By on March 9, 2015 in

Podcaster: Kelsey Johnson

heidi winterTitle : My 8 Favorite Unsolved Mysteries of the Universe

Organization: NRAO

Link :
The Universe pie chart:
The Bullet Cluster:
The WMAP Cosmic Microwave Background:
Cosmic acceleration:
Einstein’s field equation:
Stress energy tensor:
Black hole gravitational lensing:
Schwarzschild radius
The Drake Equation:
How to colonize the galaxy:
Calabi-Yau manifold:,550×550,075,f.jpg
Fundamental force strength graph:
Physical constants of the Universe:
Turtles all the way down:

Description: 2nd Annual Heidi Winter Memorial Lecture by Kelsey Johnson about 8 Favorite Unsolved Mysteries of the Universe

Bio: Dr. Kelsey Johnson is an astronomer from NRAO

Today’s sponsor: This episode of “365 Days of Astronomy” is sponsored by — no one. We still need sponsors for many days in 2015, so please consider sponsoring a day or two. Just click on the “Donate” button on the lower left side of this webpage, or contact us at


The 8 mysteries:
– 8: What is dark matter?
– 7: What is dark energy?
– 6: What happens inside black holes?
– 5: Are we alone? Is there other life in the Universe?
– 4: Are there other dimensions?
– 3: What determines the laws of nature?
– 2: Is the Universe “Fine tuned”?
– 1: What caused the beginning of the Universe?
The mysteries Kelsey had to leave off for time reasons:
– 10: What is the nature of time?
– 9: What is the shape of the Universe?

Clarke’s 3 laws:
– If a distinguished but elderly scientist says something is possible, he is almost certainly right. If he says it’s impossible, he’s very probably wrong.
– The only way of discovering the limits of the possible in to venture a little way past them into the impossible.
– Any sufficiently advanced technology is indistinguishable from magic.

End of podcast:

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One Response to Mar 9th: My 8 Favorite Unsolved Mysteries of the Universe

  1. Andrew Bellavia March 10, 2015 at 2:54 pm #

    Absolutely incredible. From the poem to the final ‘thank you’, this was fantastic. Thank you Dr. Johnson!