Showing posts with label microbe. Show all posts
Showing posts with label microbe. Show all posts

Sunday, July 27, 2014

Big Picture Science for 07/28/14 - Replace What Ails You

Image for Big Picture Science weekly radio show
Big Picture Science - Replace What Ails You

Germs can make us sick, but we didn’t know about these puny pathogens prior to the end of the 19th century. Just the suggestion that a tiny bug could spread disease made eyes roll. Then came germ theory, sterilization, and antibiotics. It was a revolution in medicine. Now we’re on the cusp of another one. This time we may cure what ails us by replacing what ails us.

Bioengineers use advancements in stem cell therapy to grow red and white cells for human blood. Meanwhile, a breakthrough in 3D printing: scientists print blood vessels and say that human organs may be next.

Plus, implanting electronic grids to repair neural pathways. Future prosthetics wired to the brain may allow paralyzed limbs to move.

We begin with the story of the scientist who discovered the bacteria that caused tuberculosis, and the famous author who revealed that his cure for TB was a sham.

Guests:

Permalink: http://radio.seti.org/episodes/Replace_What_Ails_You

You can listen to this and other episodes at http://radio.seti.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Tuesday, March 27, 2012

Is it Snowing Microbes on Enceladus?

Source - NASA Science News for March 28, 2012

Is it snowing microbes on Enceladus? The idea might not be so far-fetched, say researchers, as evidence mounts for a "uniquely accessible" habitable zone on Saturn's icy moon.

FULL STORY: http://science.nasa.gov/science-news/science-at-nasa/2012/27mar_enceladus/

Thursday, December 02, 2010

Discovery of "Arsenic-bug" Expands Definition of Life

Source - NASA Science News for Dec. 2, 2010

Astrobiologists have discovered the first known microorganism on Earth able to thrive and reproduce using the toxic chemical arsenic. The microorganism, which lives in California's Mono Lake, substitutes arsenic for phosphorus in the backbone of its DNA.

FULL STORY at

http://science.nasa.gov/science-news/science-at-nasa/2010/02dec_monolake/