Join Fraser Cain and Pamela Gay for a live episode of Astronomy Cast. We’ll record our 30-minute show, and then stay tuned for them to answer questions!
We’ve looked at Earth’s changing climate, now let’s see what it’s like for another world: Mars. Much looks familiar, but some of it is totally alien, from ice caps of frozen carbon dioxide to planetary dust storms that can obscure the entire world from view.
Fraser and Dr. Pamela onscreen: 5:46
Start of show: 16:42
This video was made possible by the following Patreon members:
Stephen Veit
Jordan Young
Jeanette Wink
Andrew Poelstra
Brian Cagle
David Truog
BogieNet
Gerhard Schwarzer
David
THANK YOU! – Fraser and Dr. Pamela
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5:46 People on screen. Pre-show rant this time, old man yelling at the digital age 🙂 And I don't disagree…
Welcome back hope you had a good summer.
Starts @ 16:42
To be clear, the low gravity is a BIG problem for a Martian atmosphere, since anything lighter than O2 or N2 really doesn't want to hang around. The lack of a coherent magnetosphere then means that most of those molecules end up split into their component atoms, and singlet oxygen reacts crazily with just about anything, while hydrogen escapes to space even faster than it does on Earth… a process accelerated by the lack of a thick atmosphere full of things for THAT to react with. Thus even heavy gaseous molecules like O3 and H2O just don't hang around: no magnetosphere = constant breaking into component atoms; lower gravity + reactive component atoms = no hope of any real atmosphere from accumulating on such a light planetary body.
Maybe look into who you allow as sponsor. Snippet from FTC press release:
"The Federal Trade Commission finalized an order requiring online counseling service BetterHelp to pay $7.8 million and prohibiting it from sharing consumers’ health data for advertising, resolving allegations the firm shared consumers’ sensitive health data with third parties such as Facebook and Snapchat for advertising after promising to keep such data private."
When you sit back the lighting is better. When you are close the highlights are blown out
Correction the lighting is just to hot