Mars:

[Talon]

Why we didn't go in the 70's.

[dudeman]

Who's to say we didn't and its still classified. The aliens that told us not to go to the moon anymore, helped us get to Mars.

[Woods Devil]

Why the fixation on mars? Might there be a better and cheaper option?

[Woods Devil]

And why do we need to have a person set foot on another planet? Just to say that we did it? Unmanned missions are much cheaper and are already producing good science.

[Unclefred]

I don't want to watch videos, that's what youtube is for. So what's the reason?

[Woods Devil]

We already have experience maintaining a permanently inhabited space station in earth orbit so perhaps the next logical baby step would be to operate a space station in either lunar orbit or at one of the earth-moon lagrange points.

In celestial mechanics, the Lagrangian points also Lagrange points, L-points, or libration points are positions in an orbital configuration of two large bodies where a small object affected only by gravity can maintain a stable position relative to the two large bodies. The Lagrange points mark positions where the combined gravitational pull of the two large masses provides precisely the centripetal force required to orbit with them. There are five such points, labeled L1 to L5, all in the orbital plane of the two large bodies. The first three are on the line connecting the two large bodies and the last two, L4 and L5, each form an equilateral triangle with the two large bodies. The two latter points are stable, which implies that objects can orbit around them in a rotating coordinate system tied to the two large bodies.

http://ccar.colorado.edu/asen5050/pr...ts_2012/wolma/

http://hyperphysics.phy-astr.gsu.edu...ics/lagpt.html

http://www.freemars.org/l5/aboutl5.html

[Woods Devil]

[Steve28]

Near as we can tell, the universe is really, really empty. We need to colonize that shit. Walmart will follow.

[UnderTheStars]

I was just in a discussion about Lagrange points the other day. It was concerning the Earth being smashed in a collision with a small planet: Theia, resulting in the formation of the Moon. Isotope samples from both Moon and Earth match Theia. The original theory was that it was a side-swipe, Theia glanced by the Earth. This new evidence points to a massive head-on collision with Theia striking Earth violently.

One theory is that proto-planet Theia stayed near a stable Sun-Earth Lagrangian point (L4 or L5), but it was influenced by the gravity of Jupiter and/or Venus, was pulled out of a relatively stable orbit, colliding with Earth.

http://www.popularmechanics.com/space/a19143/earth-moon-theia-collision/

[UnderTheStars]

Why we didn't go in the 70's.

Were we ready for such a trip in the 70's? Technologically?

[dudeman]

Y'all really want to freak out? Look up Apollo 18-20 and MonaLisa.

[Talon]

I think, Werher Von Braun could have done it.

Were we ready for such a trip in the 70's? Technologically?

[UnderTheStars]

I think, Werher Von Braun could have done it.

No I gotta google Werher von braun..

https://en.wikipedia.org/wiki/Wernher_von_Braun

[Talon]

He's the guy that got us to the Moon. I didn't even know about him until I was in my 30's. They don't like to give him the credit.

[UnderTheStars]

He's the guy that got us to the Moon. I didn't even know about him until I was in my 30's. They don't like to give him the credit.

You're right, he could have done it. Had no idea.

I just realized my dad would have known him and worked with him. <3