Who's Online

We have 1810 guests online

Polls

Are we alone in the universe?
 

Recent Videos


Category: Spitzer
Rating:
Views: 2272
Category: NASA
Rating:
Views: 1995
Category: Spitzer
Rating:
Views: 2108

Search Videos

Are we really alone? Think about it.
Alien Life: Fossils of Cyanobacteria in CI1 Carbonaceous Meteorites
PDF Print E-mail
Written by Richard B. Hoover, Ph.D. NASA/Marshall Space Flight Center
Monday, 07 March 2011 09:37

Dr. Hoover has discovered evidence of microfossils similar to Cyanobacteria, in freshly fractured slices of the interior surfaces of the Alais, Ivuna, and Orgueil CI1 carbonaceous meteorites. Based on Field Emission Scanning Electron Microscopy (FESEM) and other measures, Dr. Hoover has concluded they are indigenous to these meteors and are similar to trichomic cyanobacteria and other trichomic prokaryotes such as filamentous sulfur bacteria. He concludes these fossilized bacteria are not Earthly contaminants but are the fossilized remains of living organisms which lived in the parent bodies of these meteors, e.g. comets, moons, and other astral bodies. Coupled with a wealth of date published elsewhere and in previous editions of the Journal of Cosmology, and as presented in the edited text, "The Biological Big Bang", the implications are that life is everywhere, and that life on Earth may have come from other planets.

Ivuna CI1 meteorite filament (0.8 μm diameter) with dark lines C, partially encased in thin carbon-rich sheath

 


 
provides images and Energy Dispersive X-Ray Spectroscopy elemental data for filaments found embedded in the Ivuna CI1 carbonaceous meteorite. Fig. 1.a is a FESEM image of a thin uniseriate filament that is flattened at the terminal end. The filament is cylindrical in the lower portion embedded in the meteorite rock matrix. This small, undulatory filament (diameter 0.7 to 1.0 m) is rich in C, Mg, and S and depleted in N. The filament is only partially encased within a broken and very thin carbonaceous sheath. EDS elemental data is shown for spot 1 on the thin sheath (Fig. 1.b) and for spot 3 on the nearby mineral matrix (Fig. 1.c). The sheath has higher carbon content and biogenic elements N and P are below the 0.5% detection limit of the instrument. Fig. 1.d is a FESEM image of 5m diameter X 25 m long spiral filament Ivuna with white globules that are sulfur-rich as compared with the rest of the filament and the meteorite matrix. A tuft of fine fibrils is visible at the left terminus of the filament and the terminus at the lower right is rounded. Fig. 1.e is a FESEM Backscattered Electron image of an Ivuna filament with sulfur-rich globules S and rounded terminus R that is similar in size and morphology to the giant bacterium “Titanospirillum velox”.

Last Updated on Monday, 07 March 2011 10:10
 
New discoveries point to it being more likely that humans are not the only inhabitants in the universe.
PDF Print E-mail
Written by RedOrbit Staff & Wire Reports
Saturday, 11 December 2010 12:19

The evidence is just getting stronger and stronger," Carl Pilcher, director of NASA's Astrobiology Institute, which studies the origins, evolution and possibilities of life in the universe, told The Associated Press (AP). "I think anybody looking at this evidence is going to say, "There's got to be life out there."

ImageCredit: NASA, ESA, and J. Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain)

Scientists have an equation that calculates the odds of civilized life on another planet.  However, that equation mostly includes factors that are pure guesswork on less-than-astronomical factors, such as the likelihood of the evolution of intelligence and how long civilizations last.  The calculations hinge on two basic factors:  How many places out there can support life?  And how hard is it for life to take root?   The Associated Press interviewed 10 scientists who all agreed that with more evidence pouring in, it is becoming more and more likely that there is alien life in the universe.

Last Updated on Saturday, 11 December 2010 12:24
 
<< Start < Prev 1 2 3 4 5 6 Next > End >>
Page 1 of 6