Welcome to DU! The truly grassroots left-of-center political community where regular people, not algorithms, drive the discussions and set the standards. Join the community: Create a free account Support DU (and get rid of ads!): Become a Star Member Latest Breaking News Editorials & Other Articles General Discussion The DU Lounge All Forums Issue Forums Culture Forums Alliance Forums Region Forums Support Forums Help & Search

Creative Speculation

GeorgeGist

(25,476 posts)

1. Elsewhere he claims it was an asteroid ...

Reply to wildbilln864 (Original post)

Tue Dec 16, 2014, 05:18 PM

Dec 2014

His latest scientific book: “Life and Death on Mars: The New Mars Synthesis” is in press and deals with the evidence that a large asteroid impact on Mars late in its geologic history may have collapsed a persistent greenhouse regime on that planet, and that such a climatic collapse may have triggered a mass extinction of life there.http://www.astroreview.com/author/john-e-brandenburg-ph-d

Edit history

Please sign in to view edit histories.

Recommendations

0 members have recommended this reply (displayed in chronological order):

6 replies

= new reply since forum marked as read

Highlight:

Nuclear Attack From Aliens Eradicated Life On Mars, Physicist Claims [View all] wildbilln864 Dec 2014 OP

Elsewhere he claims it was an asteroid ... GeorgeGist Dec 2014 #1

interesting. thanks. n/t wildbilln864 Dec 2014 #3

... PoliticAverse Dec 2014 #2

Even a PhD won't protect someone from mental illness. nt hack89 Dec 2014 #4

lol! n/t wildbilln864 Dec 2014 #5

Aliens to Mars? Or indigenous Martian aliens? jberryhill Dec 2014 #6