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Arsenic and Old Space: The Possibilities of Life

NASA funded research uncovers a microbe which can substitute Arsenate for Phosphate and redefines life as we know it. Felisa Wolf-Simon, head author of the paper submitted by the NASA team, says the discovery, "Cracks open the doors for what we might find in the universe."

With a new play book for what life is and where it can survive, our search for alien life changes - allowing us to investigate previously "uninhabitable" environments and recognize previously unthinkable life forms.

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Jan
17

414

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If you could extend your life 1000 years with science and technology, would you do it?

bobbonew: Science and technology are pushing new boundaries every day. Before we know it we'll be able to extend our life tens of times longer than it is now. So will you guys do it, and why? (7 answers)

bobbonew's Avatar

1 year ago

482

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Are fruits living things?

Parasyte: And vegetables? (4 answers)

Parasyte's Avatar

2 years ago

214

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Do you think the 200-300 volts of "life electricity" constantly present in our bodies could be the soul?

LiteStyle0o: They say the energy being trapped in this vessel weighs almost exactly 28 grams or 1 ounce... (4 answers)

LiteStyle0o's Avatar

2 years ago

270

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What planet, other than Earth and Mars, is most likely to contain life?

Chiggins (3 answers)

Chiggins's Avatar

2 years ago

266

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If water came from space, and all life on Earth came from water, doesn't that mean we came from space too?

Parasyte: Okay, I was watching this thing on History Channel, and it said that some scientists believe that all the water on Earth came from space. And if all life on Earth came from water, doesn't that mean the organisms that evolved into modern day/ancient animals came from space as well? If so, isn'... (1 answer)

Parasyte's Avatar

2 years ago

223

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Why do people have such a short life expectancy?

god: 100 years is absolutely nothing to me...

It may be 60 years more than years ago, but its still so incredibly short... (5 answers)

god's Avatar

3 years ago

133

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Low birth rates, high density, and life are characteristics of what?

(Guest) (3 answers)

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3 years ago

183

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Why did people have such short life expectancy up until as recently as 100 years ago?

Little Miss Curious: Was it that people died from common ailments that we now have medicine for? Id think they should have lived longer assuming they ate a better diet, and got more excercise, and less stress. (4 answers)

Little Miss Curious's Avatar

3 years ago

101

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With the new evidence of water on Mars, would that mean there was life on Mars?

pandabear: My thinking is that if there was once water, there must have been some sort of life at one time in history. (1 answer)

pandabear's Avatar

3 years ago

104

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Do you think there are other forms of intelligent life in out there in the cosmos?

bobbonew: I just learned that there are more stars in existence in the universe than there are grains of sand on planet Earth. That means there are planets orbiting those stars. If life could have evolved here on planet Earth, I really think it could be possible that there are other planets out there that cou... (3 answers)

bobbonew's Avatar

3 years ago

190

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Is there proof of intelligent life in the universes other than us?

Bonzo (3 answers)

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3 years ago

106

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What are some things I can do in my everyday life to live more green?

pandabear: I'm trying to be "green" but it's actually hard to break the cycle of being wasteful. I'm just looking for simple, low-cost ideas. (4 answers)

pandabear's Avatar

3 years ago

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