David S. F. Portree on Muck Rack

David S. F. Portree

Flagstaff, Arizona, USA
Manager, NASA and Blogger, Spaceflight History

Blogger, Spaceflight History & Manager, NASA/USGS Regional Planetary Information Facility, Tweets do not reflect USGS or NASA policy.

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@dsfpspacefl1ght — 1,324 followers, 32,981 tweets

Nov 20, 2017

Pioneer Mars Orbiter with Penetrators (1974) -  http://spaceflighthistory.blogspot.com/2017/11/pioneer-mars-orbiter-1974.html  If Viking had found unequivocal signs of life on Mars in 1976, we'd have seen a whole bunch of mission proposals like this fighting to be next in line. #spaceflighthistory https://t.co/IwuojORbJt

Nov 20, 2017

@brianwolven Maybe not, but it's something to work with if we want to get carried away with the whole "It's a spaceship!" thing.

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