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Paul N

Genetic code extended to 3 base pairs - 0 views

www.nytimes.com/...g-artificial-genetic-code.html

BIO

shared by Paul N on 07 May 14 - No Cached
  • Paul N on 07 May 14
     
    While the new bacteria is pretty much useless, it would be interesting to see how base 3 genetic programming would turn out.
Juxi Leitner

Lotus Plant-Inspired Dust-Busting Shield To Protect Space Gear - 3 views

www.space-travel.com/...To_Protect_Space_Gear_999.html

technology bio spacecraft dust shielding

shared by Juxi Leitner on 29 Sep 09 - Cached
  • replicate to prevent dirt from accumulating on the surfaces of spacesuits, scientific instruments, robotic rovers, solar array panels and other hardware used to gather scientific data or carry out exploratory activities on other objects in the solar system
  • The team also is trying to partner with Northrop Grumman to add a biocide to the coating, which would kill bacteria that thrive and produce foul odors wherever people are confined to a small space for long periods, like the space station.
  • Tobias Seidl on 04 Oct 09
     
    We had some discussion about the Lotus-effect roughly two years ago. Zoe said that NASA surely worked on it. Well, she was right.
LeopoldS

A Constant Flux of Diverse Thermophilic Bacteria into the Cold Arctic Seabed -- Hubert ... - 0 views

www.sciencemag.org/...1541

BIO PHY science

shared by LeopoldS on 02 Nov 10 - No Cached
  • LeopoldS on 02 Nov 10
     
    sleeping for 100 million years .... 
Christos Ampatzis

NASA news conference Dec. 2, on extraterrestrial life?! - 3 views

www.nasa.gov/...M10-110.html

space BIO fun

shared by Christos Ampatzis on 01 Dec 10 - No Cached
  • Christos Ampatzis on 01 Dec 10
     
    Let's start betting which party Aliens vote: GREEN, BLUE, RED, BLACK?
  • ...3 more comments...
  • Luís F. Simões on 01 Dec 10
     
    yes, the internet is going crazy over this one :) (http://cumbriansky.wordpress.com/2010/11/30/nasas-astrobiology-press-conference/) This is the most likely scenario I've seen so far for what will be announced tomorrow: http://skymania.com/wp/2010/11/alien-life-form-is-here-on-earth.html/ "...discovery of microbes in a deadly poisonous lake that get their energy from arsenic. Experts say this shows they had a completely different origin to any other creature known on our planet. It means that life began not just once but at least twice on Earth."
  • Joris _ on 02 Dec 10
     
    well, we've all seen the movie Evolution (http://www.imdb.com/title/tt0251075/) ;p ... this is exactly this scenario indeed.
  • Ma Ru on 02 Dec 10
     
    yaaawnnn... Let's wait until they actually announce it.
  • nikolas smyrlakis on 02 Dec 10
     
    http://astrobiology.nasa.gov/ for the moment is down. My bet, the microbe they found notified its cousins and they are currently invading the US
  • Luís F. Simões on 02 Dec 10
     
    you can still see the rest of it here: http://www.nasa.gov/multimedia/nasatv/index.html a good link with a summary and discussion on the announcement is here: http://www.guardian.co.uk/science/2010/dec/02/nasa-life-form-bacteria-arsenic
pacome delva

Synthetic Genome Brings New Life to Bacterium - 0 views

www.sciencemag.org/...958

bio genomics ethics

shared by pacome delva on 21 May 10 - Cached
LeopoldS liked it
  • For 15 years, J. Craig Venter has chased a dream: to build a genome from scratch and use it to make synthetic life. Now, he and his team at the J. Craig Venter Institute (JCVI) in Rockville, Maryland, and San Diego, California, say they have realized that dream.
  • "One thing is sure," Boeke says. "Interesting creatures will be bubbling out of the Venter Institute's labs."
  • pacome delva on 21 May 10
     
    wow, a big step in genomics...!
  • Ma Ru on 21 May 10
     
    But isn't it just yet another word abuse? From what I understand, they just synthesised a genome identical to the one of an existing bacteria... while undoubtedly nice work, this is *very* far from "creating life from scratch"... The fact that you are able to copy something, doesn't mean you understand how it works...
  • pacome delva on 27 May 10
     
    well of course we are far from engineering specific functions, and this is just a copy of a function that already existed. However it is quite impressive and the first time it is done. And the challenge here is not really to "copy" the ADN, but the fact that it works... in other words it is not because you copy the ADN identically that the phenotype (traduction of the ADN) will be the same, which is the case in this experiment.
Luís F. Simões

Pee power: Urine-loving bug churns out space fuel - 4 views

www.physorg.com/...r-urine-loving-bug-churns.html

NRG fuel bacteria

shared by Luís F. Simões on 03 Oct 11 - No Cached
LeopoldS liked it
  • Scientists on Sunday said they had gained insights into a remarkable bacterium that lives without oxygen and transforms ammonium, the ingredient of urine, into hydrazine, a rocket fuel.
  • LeopoldS on 11 Oct 11
     
    Camilla: can we have a closer look into this and maybe do something further?
ESA ACT

Ancient bacteria show evidence of DNA repair -- Johnson et al. 104 (36): 14401 -- Proce... - 0 views

www.pnas.org/...14401

BIO SuperAstronaut

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    DNA repair as an answer to the radiation in space. If we cannot protect the astronauts, we could maybe repair them...
ESA ACT

LSU scientist finds evidence of 'rain-making' bacteria - 0 views

del.icio.us/ESA_act

biology environment

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    bio precipitations
Nina Nadine Ridder

Scientists teach bacterium a new trick for artificial photosynthesis - 1 views

phys.org/...artificial-photosynthesis.html

BIO photosynthesis bacteria science

shared by Nina Nadine Ridder on 05 Jan 16 - No Cached
  • Nina Nadine Ridder on 05 Jan 16
     
    Berkeley Lab researchers are using M. thermoacetica to perform photosynthesis - despite being non-photosynthetic - and also to synthesize semiconductor nanoparticles in a hybrid artificial photosynthesis system for converting sunlight into valuable chemical products.
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