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The Tunguska Mystery -- it's a wrap!

The Tunguska impactor as magnetically-charged primordial black hole -- million-to-one longshot, or ... even money?

Magnetically-charged black holes as the final missing piece of the Tunguska mystery?

Black holes exploding with the force of a thousand all-out nuclear wars??? Jack’s kidding, right?

How a Mission to Moscow and a tip from Kip (Thorne, that is) finally turned Stephen Hawking's head around as regards black hole thermodynamics.

What Stephen Hawking didn't want you to know about black-hole entropy. (With special thanks to Jacob Bekenstein, for sharing his reminiscences.)

Can't Get Out of the Game. Black holes meet the Heat Death of the Universe!

Not from under a cabbage leaf, that's for sure!

What does it really take to make a universe, anyway?

Why one Global Causality Violation can ruin your whole day.

What’s really inside a black hole? Take the Cook's Tour with Doctor Jack.

A star dies; a black hole is born.

In which the Jackson-Ryan hypothesis crashes, burns, gets shoveled over with dirt -- all for want of an "exit event."

The inside story of how the the Jackson-Ryan black-hole collision theory of the Tunguska Event came to be. Special thanks to Albert A. Jackson, IV and Michael P. Ryan, Jr. for sharing their reminiscences of the Vurdalak Conjectures genesis -- in person!

Swim along with Doctor Jack as he plumbs the murky depths of the latest "solution" to the Tunguska mystery.

A listener's casual remark shunts Doctor Jack onto a major meditation about the meaning of "not multiplying causes beyond necessity." (Want to derail Jack's carefully laid-out curriculum even more? Submit your own question to: doctorjacksoapboxseminars.com.)

Was it a comet, or a meteorite ... or something else entirely? A hundred years' worth of Tunguska speculation, and Tunguska controversy, at a glance.

The mystery of the 1908 Tunguska Event -- a hundred years old today, and still no solution in sight?