Theories on why Venus and Mars aren't inhabited by similar life forms?

[julius]

I've always wondered why those two planets, one of which is basically our twin (size wise and distance to the sun) and the other is just a tad smaller and similar in distance (further out of course), but neither have any life.

And the two aren't similar in their atmosphere/climate either. One is incredibly hot, the other isn't.

We could (potentially) go to Mars and colonize, but there's no chance we could do the same with Venus.

What happened to Venus and Mars, and why?

Were they, at one time, "home worlds" for other species of humans, or even us?

 

[Further]

I'm not too knowledgable on the subject, but I know the atmosphere on Venus is very heavy (like 90 times heavier than ours) and I think the temperature gets well above 600 degrees Celsius. So those could be two factors. I don't think there is any water on Venus and that could also play a roll.

Mars I'm not sure about either. A very thin atmosphere makes life hard. Water again, although in the distant past there hay have been a lot more.

 

[Hobbesarable]

I've always wondered why those two planets, one of which is basically our twin (size wise and distance to the sun) and the other is just a tad smaller and similar in distance (further out of course), but neither have any life.

And the two aren't similar in their atmosphere/climate either. One is incredibly hot, the other isn't.

We could (potentially) go to Mars and colonize, but there's no chance we could do the same with Venus.

What happened to Venus and Mars, and why?

Were they, at one time, "home worlds" for other species of humans, or even us?

Here's an interesting read.

NASA Rover Finds Conditions Once Suited for Ancient Life on Mars

http://www.nasa.gov/mission_pages/msl/news/msl20130312.html#.Uy-qBKhdXW8

Curiosity's SAM Instrument Finds Water and More in Surface Sample

http://www.nasa.gov/content/goddard...ater-and-more-in-surface-sample/#.Uy-rbKhdXW8

 

[jlprk]

I've always wondered why those two planets, one of which is basically our twin (size wise and distance to the sun) and the other is just a tad smaller and similar in distance (further out of course), but neither have any life.

And the two aren't similar in their atmosphere/climate either. One is incredibly hot, the other isn't.

We could (potentially) go to Mars and colonize, but there's no chance we could do the same with Venus.

What happened to Venus and Mars, and why?

Were they, at one time, "home worlds" for other species of humans, or even us?

This is March. Try standing uncomfortably close to a furnace. Now double your distance, uncomfortably far from it. If you stood either place for billions of years, it would affect everything about you, right down to the types of bacteria growing out of your pores.

Can't understand why Venus and Mars are different. Sheesh.

 

[Natebishop3]

I wouldn't be surprised if there was, at one time, life on Mars.

I also wouldn't be surprised if there was life on earth prior to what our history shows us. A reboot of sorts. Humans achieving a technological advancement not far from that which we have now and unfortunately wiping themselves out.

 

[jlprk]

Julius, it wasn't a personal insult. It was a humorous insult. The first sentence was deleted. If I'd said it to Sly, it would be, You must be an idiot. Of course, I said it to you, humorously.

Don't let this dryface over-sober Sly guy rip apart our intimate relationship, Julius.

 

[barfo]

Because God doesn't love Venus and Mars as much as he loves us.

barfo

 

[MARIS61]

Beats me.

Why do Americans die every day from lack of basic food, shelter and healthcare?

There are so many mind-boggling mysteries we will never decipher.

 

[magnifier661]

I've always wondered why those two planets, one of which is basically our twin (size wise and distance to the sun) and the other is just a tad smaller and similar in distance (further out of course), but neither have any life.

And the two aren't similar in their atmosphere/climate either. One is incredibly hot, the other isn't.

We could (potentially) go to Mars and colonize, but there's no chance we could do the same with Venus.

What happened to Venus and Mars, and why?

Were they, at one time, "home worlds" for other species of humans, or even us?

I remembered watching a show about our solar system and how the earth is the perfect length away from the sun to support life. I believe Venus is too hot and mars or too cold.

Some believe mars could be inhabitable at one point, but lost the sweet spot. Call it the "G-Spot"

 

[magnifier661]

Beats me.

Why do Americans die every day from lack of basic food, shelter and healthcare?

There are so many mind-boggling mysteries we will never decipher.

Evolution... Like the lion killing their sick, it's just nature.

 

[jlprk]

All I said was, You must be an idiot, and that jealous Sly saw his chance to steal him from me. We're back together.

 

[santeesioux]

Goddidit.

 

[magnifier661]

Boys have penises and girls have vaginas

 

[santeesioux]

Boys have penises and girls have vaginas

Well...

 

[magnifier661]

Well...

Man he's smoking hot!

 

[MarAzul]

Beats me.

Why do Americans die every day from lack of basic food, shelter and healthcare?

There are so many mind-boggling mysteries we will never decipher.

Actually, more die without those deficiencies.

 

[Further]

Man he's smoking hot!

repped!

 

[santeesioux]

Man he's smoking hot!

Best looking dude i've ever seen tbh.

 

[Fez Hammersticks]

It's disturbing that you know of him/her.

 

[santeesioux]

It's disturbing that you know of him/her.

I heard about him/her on the radio, i swear

 

[jlprk]

You must be idiots.

 

[The_Lillard_King]

The OP is incorrect. I just read a book that said both Venus and Mars were inhabited by similar life forms. I suggest you all read the book, it's called:

Men Are from Mars, Women Are from Venus
-by John Grey

 

[Eastoff]

Mars is actually in the habitable zone. Which means it can sustain liquid water. Mars probably had a good chance at life at one point. The earth is unique because it has a spinning iron core which produces a magnetic field. This magnetic field is called the ionosphere. It protects us from a lot of the high intensity radiation, not the atmosphere itself. This high intensity radiation would like kill what life did try to live on a planet without an ionosphere. Basically this spinning iron core helps us from all dying of cancer before we can evolve.

 

[magnifier661]

Mars is actually in the habitable zone. Which means it can sustain liquid water. Mars probably had a good chance at life at one point. The earth is unique because it has a spinning iron core which produces a magnetic field. This magnetic field is called the ionosphere. It protects us from a lot of the high intensity radiation, not the atmosphere itself. This high intensity radiation would like kill what life did try to live on a planet without an ionosphere. Basically this spinning iron core helps us from all dying of cancer before we can evolve.

God put the iron there! He didn't want us to be green, big headed monsters.

 

[3RA1N1AC]

i bet god buried some dinosaur bones on mars to weed out the non believers

 

[Eastoff]

God put the iron there! He didn't want us to be green, big headed monsters.

Actually Mars does have iron in it's core, it's just not spinning and circulating like it does for us.

Here's a picture of Mars.

Oh and there's also this thing about Mars' Magnetic field:
http://phys.org/news141573374.html

 

[barfo]

Actually Mars does have iron in it's core, it's just not spinning and circulating like it does for us.

Here's a picture of Mars.

I see a face down at the bottom of Mars. Mars is smiling a bit. Like it's up to something.

barfo

 

[PapaG]

Why hasn't "life" arisen on these other planets? Evolution would seem to state that species will be evolved based on the conditions of the surroundings, and the strongest of these genetic changes will survive as long as possible. There are fish on Earth that live in what are basically oxygen-free environments, and with literally thousands of pounds of water pressure. Why can that evolve on earth, yet nothing on our neighboring planets? That's another thing I've always wondered. The stock answer is that the other planets don't have the same conditions as Earth, yet that doesn't make sense, in terms of true universal life. If inorganic matter can evolve into organic matter, shouldn't that happen on all planets? Or, are we just all lucky we live on the one planet we know of that has conditions perfect to sustain life as we know it.

 

[PapaG]

Mars is actually in the habitable zone. Which means it can sustain liquid water. Mars probably had a good chance at life at one point. The earth is unique because it has a spinning iron core which produces a magnetic field. This magnetic field is called the ionosphere. It protects us from a lot of the high intensity radiation, not the atmosphere itself. This high intensity radiation would like kill what life did try to live on a planet without an ionosphere. Basically this spinning iron core helps us from all dying of cancer before we can evolve.

So, it's just chance that we inhabit the one planet that we know of that can sustain organic life? Think of those odds!

 

[Eastoff]

So, it's just chance that we inhabit the one planet that we know of that can sustain organic life? Think of those odds!

You mean, the odds that a planet that can sustain life, has life? WHOA! mind blowing. That's like, what are the odds a swimming pool collects water?