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Cells' Molecular Motor Diversity Confounds Evolution by Jeffrey Tomkins, Ph.D. * Scientists believe that the study of genes that encode the proteins for molecular motors will help solve the mysteries of evolution. However, the result of a study published in the journal Genome Biology and Evolution has only served to support the predictions of special creation—that unique variants of cellular complexity and innovation exist at all levels of life.1 Molecular motors are important features of eukaryotic cells that are formed by a variety of protein types. One group of molecular motors is called the myosins, which have recently been studied...

Shedding Light on the Protein Big Bang Theory March 13, 2009 — The precise three-dimensional structure of a typical protein molecule is so complex, its origin would seem hopeless by chance. What if evolutionary biologists were to discover a whole host of proteins literally exploded into existence at the beginning of complex life? We can find out what they would think by looking at an article on the “protein big bang” found on Astrobiology Magazine...

No Weaknesses in the Theory of Evolution? by Frank Sherwin, M.A.* "There are no weaknesses in the theory of evolution." This was the testimony of Eugenie Scott to the Texas State Board of Education in January when the Board was debating new state science curriculum standards.1 Dr. Scott is Executive Director of the National Center for Science Education (NCSE), a watchdog group committed to exposing and ridiculing any group that questions the strange paradigm of Darwinism. Is it true "there are no weaknesses" in this particles-to-people worldview? Clearly, there is a very real problem with what biological molecules (DNA and...

Cell Motors Play Together Feb 27, 2009— If one molecular machine by itself is a wonder, what would you think of groups of them playing in concert?  Recent papers and news articles are claiming that’s what happens in living cells: molecular motors coordinate their efforts...

Molecular clockwork and related theories Testing the basis for “Mitochondrial Eve.”Molecular clocks, a complex topic central to current debates on human evolution, first came into prominence in paleoanthropology in the 1960’s. One well-known study by Vincent Sarich and Alan Wilson of the University of California (1967) measured the immunological reactions in primates and other animals to a control sample of the blood protein serum albumin. The differences, assumed due to a constant rate of evolution through mutations, were then plotted on a linear scale showing time elapsed since each species diverged from a common ancestor. On the same principle, DNA,...

03/29/04 -- Viruses, often able to outsmart many of the drugs designed to defeat them, may have met their match, according to new research from the University of Wisconsin-Madison. The findings show that the introduction of a harmless molecule that uses the same machinery a virus needs to grow may be a potent way to shut down the virus before it infects other cells or becomes resistant to drugs. The results are published in the March issue of the journal, Antimicrobial Agents and Chemotherapy. "When a virus encounters a susceptible cell, it enters and says, 'I'm now the boss,'" explains...

Peering into a giant molecular cloud in the Milky Way galaxy - known as W49 - astronomers from the European Southern Observatory (ESO) have discovered a whole new population of very massive newborn stars. This research was presented at the International Astronomical Union's 25th General Assembly held in Sydney, Australia, by ESO-scientist Joao Alves. With the help of infrared images obtained during a period of excellent observing conditions with the ESO 3.5-m New Technology Telescope (NTT) at the La Silla Observatory (Chile), the astronomers looked deep into this molecular cloud and discovered four massive stellar clusters, with hot and energetic...

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 February 25 M42: Wisps of the Orion Nebula Credit & Copyright: John P. Gleason (Celestial Images) Explanation: The Great Nebula in Orion, an immense, nearby starbirth region, is probably the most famous of all astronomical nebulas. Here, glowing gas surrounds hot young stars at the edge of an immense interstellar molecular cloud only 1500 light-years away. In the above deep image, faint wisps and sheets of dust...

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 January 27 BHR 71: Stars, Clouds, and Jets Credit & Copyright: J. Alves (ESO), E. Tolstoy (Groningen), R. Fosbury (ST-ECF), & R. Hook (ST-ECF), VLT Explanation: What is happening to molecular cloud BHR 71? Quite possible, a binary star system is forming inside. Most stars in our Galaxy are part of binary star systems, but few have ever been seen in formation. Recent observations of dust-darkened Bok...

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 December 20 Colorful Clouds of Orion Credit & Copyright: Robert Gendler Explanation: Revisiting one of the most famous nebulae in planet Earth's night sky, astrophotographer Robert Gendler has constructed this stunning, color-enhanced mosaic of the region surrounding the Great Nebula in Orion. As seen here, the clouds of Orion are dominated by the reddish emission nebula M42 near the bottom of the image, with blue reflection nebulae,...

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 December 10 M17: Omega Nebula Star Factory Credit & Copyright: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT Explanation: In the depths of the dark clouds of dust and molecular gas known as M17, stars continue to form. The similarity to the Greek letter capital Omega gives the molecular cloud its popular name, but the nebula is also known as the Swan Nebula, the Horseshoe Nebula, and M17. The...

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 October 14 IC 5146: The Cocoon Nebula Credit & Copyright: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT Explanation: How did this nebula get created? The Cocoon Nebula, cataloged as IC 5146, is a strikingly beautiful nebula located about 4,000 light years away toward the constellation of Cygnus. Inside the Cocoon is a newly developing open cluster of stars. Like other stellar nurseries, the Cocoon Nebula is, at the...

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 July 22 Open Cluster NGC 6520 from CFHT Credit & Copyright: Jean-Charles Cuillandre (CFHT), Hawaiian Starlight, CFHT Explanation: Did you ever have a day when it felt like a dark cloud was following you around? For the open cluster of stars NGC 6520, every day is like this. On the left of the above picture are many of NGC 6520's bright blue stars. They formed only millions...

<p>Biological warfare is the subject of today's "Winds of Change" features. Lady Margaret Thatcher leads off in typically clear and inspirational style. The recently-passed Bioterrorism Preparedness Act of 2001 follows - it's a start, but large gaps remain. We look at the act and the gaps, and set out the 10-point plan for change. In-depth briefings on anthrax and smallpox round out today's features.</p>

Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2002 May 30 Orion Nebulosities Credit & Copyright: Emmanuel Mallart Explanation: Adrift 1,500 light-years away in one of the night sky's most recognizable constellations, the glowing Orion Nebula and the dark Horsehead Nebula are contrasting cosmic vistas. They both appear in this stunning composite color photograph along with other nebulosities as part of the giant Orion Molecular Cloud complex, itself hundreds of light-years across. The magnificent Orion Nebula (aka...