3rd From Sol

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Tag Archives: hydrogen

Can Venus Be Made Habitable?

25 Monday Dec 2017

Posted by Paul Kiser in Green, Science, solar, Space, Technology, Travel

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Tags

atmosphere, carbon dioxide, CO₂, CO², Earth, extreme makeover, Global warming, greenhouse effect, hydrogen, nitrogen, O², oxygen, solar system, terraforming, Venus, Weather

Venus: Too hot, too much atmosphere

Venus may be the future of Earth and may also hold the answers to global warming.

Earth’s atmosphere is 78 percent nitrogen, 21% oxygen, (O₂,) and 1% other gases including carbon dioxide (CO₂) and water vapor. Even though CO₂ is considered a trace gas in our atmosphere it is a major player in the absorption of energy from the Sun. Nitrogen and oxygen are ‘invisible’ to the Sun’s radiation, so the energy from the Sun passes through the two gases without being absorbed.

The atmosphere of Venus 96% CO₂ and 3.5% nitrogen, with 0.5% other gases, including water vapor. Venus’ atmosphere is also extremely dense. The pressure at the surface of Venus is the same as the pressure at 1,000 meters (3,000 ft.) under the surface of Earth’s ocean.

Venus is also hot. The CO₂ absorbing the Sun’s energy retains the heat in a runaway greenhouse effect that keeps the temperature at 462 °C (864 °F,) both day and night.

The interesting, and terrifying fact is that the carbon found on Earth is roughly equal to the carbon found on Venus. The difference is that Earth stores its carbon in the ocean, and in calcite deposits that consists of dead marine life that settled in the bottom of an ocean and became a sedimentary rock formation.

There is also a nitrogen problem. Even though nitrogen makes up 3.5% of Venus’ atmosphere, it is four times the amount of nitrogen in Earth’s atmosphere.

Venus could be Earth Like if:

  • Almost all of the atmospheric carbon and three-quarters of the nitrogen could be transformed into solid carbon and solid nitrogen.
  • Some of the oxygen from the CO₂ could be liberated for the atmosphere.
  • The rest of the oxygen could be liberated to combine with hydrogen in the upper atmosphere to create water.
  • The Sun’s energy could be reduced (blocked) to allow Venus to cool.
  • Venus’ rotation could be sped up and a slight tilt in the axis to match Earth’s rotation and axis.

Numbers 4 and 5 are beyond our current technology, however, solving the 1 through 3 issues are a matter of finding or creating an organism that could float in venus’ upper atmosphere and convert CO₂ to O₂. This could help scientists find a way to remove the excess carbon from Earth’s atmosphere and prevent global warming from becoming a runaway greenhouse effect on our planet.

It should be noted that Earth’s temperature is a delicate balance between incoming and outgoing energy. We don’t know at what point a runaway greenhouse effect kicks in and destroys the energy balance that maintains a near constant temperature on Earth; however, there is a point of no return where evaporating water vapor and CO₂ will absorb more energy from the Sun than what is radiated back into space. If we reach that point, Earth will become another Venus and the human race will cease to exist.

Send Our Trash Into Space

13 Wednesday Dec 2017

Posted by Paul Kiser in Government, Green, Health, Science, Space, Technology, Travel

≈ 1 Comment

Tags

cosmic rays, habitats in space, hydrogen, Mars, Moon, plastic, shielding, space travel

A.  Plastic grocery bags and water bottles are a BIG problem on Earth.

B.  Cosmic rays are a BIG problem in human space travel.

The solution to both problems is simple. Send our recycled plastic trash into space and use it to shield ships from cosmic rays.

This is not a joke.

Cosmic rays are highly energetic particles that pass through most atoms until they hit a nucleus dead on. They are a form of radiation that is the single largest health threat to astronauts traveling beyond Earth’s natural magnetic shield. 

Plastic: China doesn’t want it, and we need it in space

A Problem With A Solution

Hydrogen, which can be found in polyethylene structure of plastic grocery bags and water bottles, is effective against cosmic rays because the hydrogen atom has less space for a cosmic ray to pass through without hitting the nucleus. If spaceships were built incorporating polyethylene shielding, astronauts would be better protected from cosmic rays without adding tons of dense metal-based shielding to the spacecraft.

Recycling polymer materials and sending it into space would relatively expensive; however, if we had a major Moon and Mars exploration program the cost could be justified. Ships could use the materials once they had an inventory in space. By starting an inventory recycled plastic in orbit around Earth, the future cost of space exploration could be reduced. In addition, the amount of wasted plastic in our environment would be reduced. 

At a time when China is now refusing to accept our raw recycled materials, we need to become creative on new uses for the stuff that won’t ever go away.

Other Pages of This Blog

  • About Paul Kiser
  • Common Core: Are You a Good Switch or a Bad Switch?
  • Familius Interruptus: Lessons of a DNA Shocker
  • Moffat County, Colorado: The Story of Two Families
  • Rules on Comments
  • Six Things The United States Must Do
  • Why We Are Here: A 65-Year Historical Perspective of the United States

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