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
General Discussion
The DU Lounge
All Forums
Issue Forums
Culture Forums
Alliance Forums
Region Forums
Support Forums
Help & Search
General Discussion
In reply to the discussion: One small step for the 1%, nothing for mankind. n/t [View all]Sympthsical
(9,041 posts)57. Iridium is how we know what happened to the dinosaurs
There was a whole layer of iridium in our crust at the same geologic time. Shouldn't have been there. We must've been hit. Boom. Figured out the asteroid/dinosaur thing.
It's rare in earth's crust, but has much, much higher concentrations in asteroids.
No, the technology isn't there now. In a few centuries? Could be. Look how far we've gotten in the last 100 or so years.
People are so grumpy about all this. Is everyone's inner child dead around here? Eesh.
Edit history
Please sign in to view edit histories.
65 replies
= new reply since forum marked as read
Highlight:
NoneDon't highlight anything
5 newestHighlight 5 most recent replies
RecommendedHighlight replies with 5 or more recommendations
Yeah, because eventually being able to mine asteroids for minerals instead of Earth is nothing.
krispos42
Jul 2021
#5
Apparently so. I heartily approve of economic growth, especially when it comes from previously
Dial H For Hero
Jul 2021
#53
One does not earn aviator wings for paying to ride in a commercial airliner. There's ...
Brother Mythos
Jul 2021
#22
That criticism has been leveled at virtually every space program, manned and unmanned.
Dial H For Hero
Jul 2021
#39
Because if we wait for there to be no suffering before doing great things...
Happy Hoosier
Jul 2021
#43
Would you cancel the construction of all astronomical observatoiries as well?
Dial H For Hero
Jul 2021
#45
If you're going to wait for a billionaire to solve society's problems, then you're
Politicub
Jul 2021
#48