A post on the SETI thread got me thinking. If the big bang was the beginning of creation, why are all the planets, that we know of, basically round? I would think an explosion would have resulted in irregular, jagged shapes. There may be a theory on this, but I don't think I've ever heard of one. I can't say that I've looked, because the thought just hit me today. Anybody have a hypothesis or theory?

Friction.

While I don't hold with the big dud theory the laws of gravity dictate that matter accumulates and rotate, hence the orbs.

There are irregular shapes, they're called asteroids.

Once an object reaches a certain mass, it will collapse into itself partly.

It has to do with gravity. Asteroids are irregularly shaped because they don’t have enough mass to create the amount of gravity needed to collapse the matter into a sphere. I’m kind of a space nerd lol. I wish I could be on the team that colonizes Mars. That will be my kids’ generation though most likely.

Seems like the theory is gravity. The theory appears to say that space debris clumps together until it is big enough to have enough gravity to form an orb. Seems like that would mean all the planets should be getting larger over time, which would have an effect on their gravitational force. I wonder if there is a mathematical way to quantify that?

Unless we figure out radiation shielding and still be able to get off the ground, it's gonna be a longer than that

Actually planets tend to lose mass over time as they get older do to the solar wind. Once they clear their orbits there's not much left for the planets to gain.

We have all of the technology right now to do it. Now it’s a matter of the time to build it and the money to fund it. According to the leading experts, if we were to colonize Mars in the next 20 years then by 2140 we could create an atmosphere around it with greenhouse gasses and turn it into a habitable planet similar to earth. We wouldn’t need radiation shielding or oxygen or any of that. And shortly thereafter, in astrological terms, we could be mining Jupiter’s and saturns moons for fuel, metals and minerals. The advances in what we know about space and the technology is astounding.

where would the gas come from? so far as i know there isnt any water

There’s lots of water on Mars. It’s just locked up in ice. We would create greenhouse gasses just like we do on earth, with factories and fuel burning vehicles. Mars does have an atmosphere, just not enough of one. A hundred years of CO2 would change the planet dramatically, it would become warmer and habitable. Like I said, the technology we need is all there, it’s just a matter of funding it now.

You kinda need the radiation shielding first or you'll be cooked before you have a chance. Mars has no native radiation shielding, some localized magnetic fields but nothing close to what the earth had.

No such thing as the Big Bang

Penny is the best part of The Big Bang Theory.

A hundred years of earth's greenhouse emissions is still not even a full percentage point of earth's total atmospheric gases. Plus you have to factor in the loss to space.

Leads me to another question. What or how did gravity come into existence after the Big Bang?

You kinda need the radiation shielding first or you'll be cooked before you have a chance.


Check out this article. It’s almost four years old, so there’s been four years worth of advances since then. NASA plans to make a manned trip to Mars sometime in the 2030s

https://www.nasa.gov/feature/goddar...-astronauts-from-space-radiation-on-mars

While the premise is sound, the time frame is not, you would need quite a few years for that planet to be useable with out any shielding.

It is doable, though the cost right now is not attainable for the progress needed to proceed, as well as the limited tech known about doing it with out losing those who would be doing it, most would pass long before any real colonization would be formed !

We need quite a bit more knowledge in many areas yet to really lay down a strong foundation to build from.

I believe the only way that will happen with any speed is to join with other countries to move forward, ,,, A prospect most will not want to be involved in due to who gets the prize.

Hence private business will step in to move forward to provide the attempt !

I believe we will have a permanent colony on Mars if not in my lifetime, certainly in my children’s. According to NASA, the people who will colonize Mars have most likely already been born.

You been reading the same science journals the '60's hippies started? This is just California dreaming. The earth can't right its own ship let alone figure out how to manage alien turf.
Besides, the Chinese are already living on Mars, making socks and underwear for Walmart.