Posts Tagged ‘space’

Far out there.

Saturday, October 20th, 2012

Once again, Craig Venter is looking for new challenges. The latest may be Martian DNA.

I have thought for some time that life on Mars is going to consist of microorganisms and be buried several feet below the surface of the planet soil. I have even blogged about it before.

Now, there is a possibility of a nucleotide sequencer that could go to Mars on the next probe in 2018.

In what could become a race for the first extraterrestrial genome, researcher J. Craig Venter said Tuesday that his Maryland academic institute and his company, Synthetic Genomics, would develop a machine capable of sequencing and beaming back DNA data from the planet.

Separately, Jonathan Rothberg, founder of Ion Torrent, a DNA sequencing company, is collaborating on an effort to equip his company’s “Personal Genome Machine” for a similar task.

“We want to make sure an Ion Torrent goes to Mars,” Rothberg told Technology Review.

Although neither team yet has a berth on a Mars rocket, their plans reflect the belief that the simplest way to prove there is life on Mars is to send a DNA sequencing machine.

“There will be DNA life forms there,” Venter predicted Tuesday in New York, where he was speaking at the Wired Health Conference.

Venter said researchers working with him have already begun tests at a Mars-like site in the Mojave Desert. Their goal, he said, is to demonstrate a machine capable of autonomously isolating microbes from soil, sequencing their DNA, and then transmitting the information to a remote computer, as would be required on an unmanned Mars mission. Heather Kowalski, a spokeswoman for Venter, confirmed the existence of the project but said the prototype system was “not yet 100 percent robotic.”

Doing this on Mars would avoid the problem of contamination by earth organisms. New life forms that don’t use DNA might be a problem but most people who have thought about this believe that DNA is the genetic material of all life forms. Of course, protein, which may have been the original genetic material on earth could also be the Martian equivalent.

We are starting to see commercial spacecraft develop and one was used to reach the international space station recently. A Mars mission is another order of complexity but by 2018, it may be an option.

UPDATE: A new report describes obtaining natural gas (methane) from coal using bacteria or archea.

Many coal beds contain large amounts of methane that can be harvested by drilling wells. In recent decades, researchers have demonstrated that a large fraction of the natural gas found in the coal beds is produced by naturally occurring microörganisms that feed on coal, and they have found ways to stimulate the microbes to produce more methane. Luca Technologies, based in Golden, Colorado, is using this approach to increase production from coal beds with existing methane wells. Another company, Next Fuel, based in Sheridan, Wyoming, recently showed that it could use similar technology to produce methane from coal beds that didn’t already have methane in them, raising the possibility that vast amounts of coal that’s currently too expensive to mine could be converted into natural gas.

What will we find on Mars that might be an analogous system ?

Arthur C. Clarke is dead

Tuesday, March 18th, 2008

Arthur C. Clarke is mostly known as the “2001 A Space Odyssey” author but he was much more. One of my high school term papers was taken from his book “Interplanetary Flight.” In it, he was the first in semi-popular literature to discuss such things as escape velocity, orbital velocity and the concept of a geostationary satellite orbit. Interestingly enough, I cannot find reference to that book in his Wikipedia entry and had a later publication date than I remember.  Maybe there was a second edition. Anyway, he was a great mind and we are better for his having lived.