The Greatest Unsolved Mysteries of the Universe - Where did Earth come from?

Dr Paul Francis sheds some light on some of life's big questions in this new web series - The Greatest Unsolved Mysteries of the Universe. In the first episode, he addresses the question 'where the Earth came from?'

Each episode will explore a mystery in-depth, in an accessible and light-hearted way. Dr Francis will also be delving into some of the comments left on his previous video to answer some viewers' mysteries. If you have a universal mystery you'd like Paul to have a look at, leave it as a comment on this video. He'll be picking a few to look at throughout the series.

The series builds on his video from 2010, The Greatest Unsolved Mysteries of the Universe.

Dr Paul Francis is an award-winning astrophysics researcher and lecturer at The Australian National University. His research focuses on comets, galaxy formation and novel teaching methods.

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• galaxy
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[Matteax1]

cool education - thx 4 upload =)

[kingturello]

Who sees the poke'ball at 13:02!!!

[Batlads]

Given that first generation red dwarves would have been sprayed by the supernovae of many larger stars shouldn't we expect them to have many heavier elements on their surfaces as well. Especially given their age.

[coleskip]

Just chanced across Dr. Francis' talks while surfing this evening. Australia National is very fortunate to have such an articulate Prof. He definitely has the gift of parsimony, for even a lay person like myself understood every word of his engaging presentations. Thank you.

[ed1phant]

love those model simulations!

[Status173]

Excellent video..

Please keep them coming,

it's very interesting and Dr Paul Francis is a very good presenter.