Showing posts from 2011

Bret Webster - Photo Researchers Photographer!

In the news: "Rocket scientist turned photographer captures Utah's majesty" by John Hollenhorst » Utah

On our website: Bret Webster Collection

BS0470 Landscape Arch  and the Milky Way galaxy  in Arches National Park, Utah. Credit: Bret Webster / Photo Researchers, Inc.

BS0512 Arches National Park and the La Sal Mountains, Utah. Credit: Bret Webster / Photo Researchers, Inc.
In the news:
"Species spotted at deep-sea vent"
BBC News online
December 28, 2011

SH7063 Giant tube worms (Riftia pachyptila) on a hydrothermal vent. These animals inhabit a tube (white), from which they extend feathery red plumes. The plumes take in chemicals and release waste. The chemicals are passed to colonies of symbiotic bacteria that live inside the worm, which convert the chemicals into nutrients on which the worm feeds. The worms are usually found near hydrothermal vents (black smokers), and are extremely resistant to the heat associated with the vents. Photographed deep in the Pacific Ocean. Credit: C. Van Dover / OAR / NURP / College of William and Mary / NOAA / Photo Researchers, Inc.

Bah, Humbug on Ice?

In the news: "Once-a-year ice skating warning" BBC News - Health online December 23, 2011

BG2685 X-ray of an ice skate. Credit: Ted Kinsman / Photo Researchers, Inc.

Prosopagnosia - Face Blindness

In the news:
"Have We Met? Tracing Face Blindness to Its Roots"
by Karen Barrow
NYTimes online
December 26, 2011

Portrait of an Australian girl with freckles.
Credit: Christine Osborne / Photo Researchers, Inc.

The Sixth Toe

In the news: "Elephant's sixth 'toe' discovered" by Rebecca Morelle BBC News online
December 22, 2011 2X9093
Front feet and tip of trunk of an Asian Elephant (Elephas maximus).
Credit: Kenneth W. Fink / Photo Researchers, Inc.

Terrorized by the Flu?

In the news: "Seeing Terror Risk, U.S. Asks Journals to Cut Flu Study Facts" by Denise Grady and William J. Broad New York Times online December 20, 2011

Avian influenza virus particles. Colored transmission electron micrograph (TEM) of a H5 strain of influenza virus type A. All five H5 strains (H5N1, H5N2, H5N3, H5N8 and H5N9) cause bird flu. The particles (red) have an enveloped outer coat, or capsid. The capsid contains hemagglutinin (H) and neuraminidase (N) proteins, which allow the particles to enter the host's cells and reproduce.  Magnification: x53,000 when printed 10 centimeters wide. Credit: Hazel Appleton, Health Protection Agency Centre for Infections / Photo Researchers, Inc.

Change at the Core

In the news:  "Metal undergoes novel transition under extreme pressure" BBC News online December 20, 2011

SM8688 Earth layers, computer artwork. The external layer shows the Earth's surface topography and atmosphere, including land, water and clouds. This surface layer extends downwards for around 35 kilometers as the rocky crust. The mantle (red) is a viscous layer of rocks under high pressures and temperatures, extending downwards to a depth of around 2890 kilometers. The outer core (yellow) is a liquid layer of iron and nickel, around 2260 kilometers thick. The inner core (top) is a liquid sphere of a iron-nickel alloy, with a radius of 1220 kilometers. Credit: Gary Hincks / Photo Researchers, Inc.

Arthritis: Hope in Clostridium botulinum

Ribbon model of botulinum neurotoxin, a protein produced by the bacterium Clostridium botulinum that is considered the most powerful neurotoxin ever discovered. Credit: Carol and Mike Werner / Photo Researchers, Inc.In the news: "Arthritis and Botulinum toxin: Something to celebrate" The Economist December 10, 2011

Norovirus Vaccine

In the news: "Prevention: Trial Vaccine for Norovirus Shows Promise" By Nicholas Bakalar New York Times online December 12, 2011
Norovirus particles. Colored transmission electron micrograph (TEM) of norovirus particles (purple). Norovirus is a genus of RNA (ribonucleic acid) viruses (of the family Caliciviridae), which cause about half of all gastroenteritis cases around the world. The disease is characterized by nausea, vomiting, diarrhea and abdominal pain. The diarrhea results in fluid loss and dehydration, which may become life-threatening in the young, the elderly, and the immunocompromised if not treated promptly.

Credit: Hazel Appleton, Health Protection Agency Centre for Infections / Photo Researchers, Inc.

A Hairy Bed Bug Situation

In the news: "Hairy limbs keep bed bugs at bay" BBC News online December 14, 2011

SA4667 Colored scanning electron micrograph (SEM) of bed bugs mating. Bed bugs (Cimex lectularius) are blood sucking insects, so called because they live in the beds of humans. The male (above) punctures the body wall of one of the female's abdominal segments and deposits his sperm in a sac. This is called traumatic insemination. 
Magnification: x22 at 6x4.5 inches. Credit: Andrew Syred / Photo Researchers, Inc.

On the Origin of the Theory of Evolution

In the news: "Shipping Timetables Debunk Darwin Plagiarism Accusations" By Philip Ball December 12, 2011
BT3863 Charles Robert Darwin (1809-1882) was an English naturalist. He established that all species of life have descended over time from common ancestry, and proposed the scientific theory that this branching pattern of evolution resulted from a process that he called natural selection. His seminal works: On the Origin of Species (1859) his theory with compelling evidence for evolution. The Descent of Man (1871) he examined human evolution and sexual selection and The Expression of the Emotions in Man and Animals (1872) one of the most enduring contributions from 19th century psychology. Credit: NLM / Photo Researchers, Inc.

9N2485 Dr. Alfred Russel Wallace, O.M., F.R.S. (1823 - 1913), a British naturalist who independently proposed his own theory of evolution due to natural selection, prompting Charles Darwin to publish his as well. Credit: Biophoto A…

DisCERNing the Higgs boson

In the news: "LHC: Higgs boson 'may have been glimpsed'" By Paul Rincon
BBC News online December 13, 2011
View of the Central tracking Chamber of the Collider Detector at Fermilab (CDF). This device saw the top quark. CDF is an experiment at Fermilab, which is currently home to the world's most powerful particle accelerator called the Tevatron. The Tevatron accelerates protons and antiprotons close to the speed of light, and then makes them collide head-on inside the CDF detector. The CDF detector is used to study the products of such collisions; by doing this we try to reconstruct what happened in the collision and ultimately try to figure out how matter is put together and what forces nature uses to create the world around us. Credit: Fermi National Accelerator Laboratory / Photo Researchers, Inc.

Hemophilia B

In the news: 
"Treatment for Blood Disease is Gene Therapy Landmark"
By Nicholas Wade
New York Times
December 10, 2011
7W2859 Hemophiliac bleeding into the elbow joint (hemarthrosis). Hemophilia is a sex-linked hereditary disease that predominantly affects males. It causes a delay in blood clotting and a resulting difficulty in controlling hemorrhage. Credit: Biophoto Associates / Photo Researchers, Inc.

Anomalocaris - Cambrian Predators


Reconstruction of the problematic animal, Anomalocaris canadensis, from the Middle Cambrian Burgess Shale of British Columbia. By far the largest animal in the Burgess Shale fauna this creature of unknown affinity reached lengths of half a meter. Anomalocarids have been discovered in China, Greenland, Australia, and North America.
Credit: Chase Studio / Photo Researchers, Inc.

In the news: "An eye-opening fossil" By Matt Kaplan
December 7, 2011

Reconstruction of the Anomalocaris sp., the Middle Cambrian Chengjiang fauna of China. Although similar in most respects to Anomalocaris canadensis to the Burgess Shale, the Chinese specimens show two long spines projecting from the tail. It is possible that the spines simply have not yet been recognized in the Burgess Shale specimens. Anomalocaris has experienced a long history of misinterpreted isolated parts. The front claws were originally described as shrimp, the circular mouth plate as a jellyfish,…

The Motion of Nature

VA1046 - Chameleon Hunting Insect (YouTube/PhotoResearchers)
Experience nature on our website in a new and moving way!
 A chameleon flicks its tongue out to capture prey. A cloud of starlings undulates, fluidly forming shapes in the sky. Still pictures can't always capture the many wondrous processes of nature. Nature Source introduces video to enhance its extensive collection of nature and wildlife photography.

©Wave Royalty Free / Photo Researchers, Inc. 

Welcome to Planet Earth-Like!

In the news:
"Kepler 22-b: Earth-like Planet Confirmed"
BBC News online
December 5, 2011

Earth-like extrasolar planet, computer artwork. This planet has oceans, and an atmosphere that can support clouds. It also has a small irregularly-shaped moon. Earth-like planets capable of supporting life are found only in a star's habitable zone, a region around a star where the surface temperature of a planet is suitable for liquid water. Credit: Mehau Kulyk / Photo Researchers, Inc.

Happy Birthday, Heisenberg - For Certain.

In the news: "Laser's Quantum Fluctuations Provide a Better, Faster Source of Random Numbers" By Rebecca Boyle Popular Science online November 30, 2011

BE9320 German physicist Werner Heisenberg (1901-1976), one of the founders of quantum mechanics and head of Germany's nuclear energy program. His role in this capacity is subject to much debate, with some believing he covertly tried to thwart Germany's program to develop nuclear weapons. He discovered the Heisenberg uncertainty principle, which is now one of the central principles of modern physics.  Credit:Photo Researchers

Pituitary Gland In A Dish

In The News: "A Gland Grows Itself" by Tina Hesman Saey ScienceNews online November 9, 2011

Human pituitary gland. The pituitary secretes hormones regulating homeostasis, including tropic hormones that stimulate other endocrine glands. Credit: Southern Illinois University / Photo Researchers, Inc.

30 Years Ago Today

In the news: "World Aids Day: 30 years since Britain's first diagnosis" The Telegraph online December 1, 2011
FC0777 Illustration depicting the stages involved when a HIV virion infects a T Cell. From fusing with the T Cell to releasing its capsid into the host T-cells cytoplasm. Credit: 3D4Medical / Photo Researchers, Inc.

It's a Bird! It's...a LOT of planes!

In the news: "American Airlines Parent Files for Bankruptcy" By Michael J. De La Merced New York Times online November 29, 2011
SN9360 Air traffic routes between North America and Europe. Global map showing air traffic routes superimposed over satellite images of cities illuminated at night. North America at far left and Europe at far right. This image illustrates modern human impact on the planet.
Credit: Félix Pharand-Deschênes, Globaïa / Photo Researchers, Inc.

Medicine In Motion!

If a picture is worth a thousand words, then video speaks 30,000 words every second! Video clips can provide more information and engage a viewer's attention longer than still images alone. The new video collection from Science Source, long a leader in scientific and medical photography, is online!   

Click here to see a sample of the medical, biological and scientific video clips now available on our website.

But wait, there's more! Photo Researchers has a YouTube Channel, too!

Pining after Pollen?

In the news: "Flirty Plants" By Susan Milius ScienceNews online December 3rd print issue
Pollen tubes. Colored scanning electron micrograph (SEM) of pollen tubes (orange) on the pistil of a prairie gentian flower (Gentiana sp.). Pollen contains the male sex cells of a flowering plant. Once the grains land on the pistil (female parts) of a flower, the pollen grains form tubes that burrow down through the stigma (tip) and style (shaft) of the pistil to reach the ovule, which contains the ovum, the female sex cell. This is fertilized, forming a seed. Credit: Susumu Nishinaga / Photo Researchers, Inc.


In the news: "Coffee delivers jolt deep in the brain" By Laura Sanders Science News online November 21, 2011

2S2038 Steaming cup of coffee. Credit: Charles D. Winters / Photo Researchers, Inc.

The Tired Turkey Myth

In the news: "The Truth About Tryptophan" By Lisa Zamosky SG2250 Melatonin and the pineal gland. Computer artwork of sectioned human brains in side view, depicting secretion of the hormone melatonin by the pineal gland (highlighted). The chemical formula for melatonin is shown. Front of the brain is at left. Melatonin is a hormone secreted in the blood which helps induce sleep and set the biological rhythm of the body.
Credit: Alfred Pasieka / Photo Researchers, Inc.

Chewing Gum Prevents Ear Infections? Really?

In the news:
The Claim: 
Chewing Gum 
Can Prevent 
Ear Infections"
By Anahad O'Connor
New York Times
November 21, 2011

Polarized light micrograph of crystals of xylitol. This is a five-carbon sugar alcohol which tastes sweet and is found in fruit, fungi, vegetables, birch trees and coconut husks. Substituting xylitol for sucrose in the diet inhibits tooth decay because, unlike other sugars, it is not fermented to acid by oral bacteria. These bacteria continue to metabolize nitrogen-containing substances in our food and saliva thus raising the pH and increasing remineralization of tooth enamel. Xylitol is used to make dentally safe lozenges, chewing gum, pill-coatings and toothpaste. Magnification: x10 at 35mm size. Credit: Sidney Moulds / Photo Researchers, Inc.

Durable Plastic

In the news: "Plastic isn't over yet" By Rachel Ehrenberg ScienceNews online November 17, 2011

BT0405 Reinforced plastic. Color-enhanced scanning electron micrograph (SEM) of carbon fiber-reinforced plastic. The plastic (epoxy resin, yellow) is heat resistant up to 400 degrees centigrade. High-strength carbon fibers (grey) are embedded in it, which effectively absorb the stresses occurring in the material. The composite material is used in the aerospace and automotive industries, and in computer circuit boards and electronics. Magnification: x1920 when printed 10 centimeters wide. Credit: Eye of Science / Photo Researchers, Inc.

Where Weather and Climate Meet

In the news: "Report: Climate change means more frequent droughts, floods to come" By Juliet Eilperin The Washington Post online November 18, 2011
Flooded farm in Mississippi. Credit: Dan Guravich / Photo Researchers, Inc.

Anxiety Gene

In the news:
"Chromosome glitch tied to separation anxiety"
By Tina Hesman Saey
ScienceNews online
November 17, 2011

3A5299 A normal female karyotype, the full complement of female chromosomes arranged in numbered homologous pairs. They are numbered 1-23 from top left to bottom right, the last pair being the sex chromosomes. They are obtained by matching unpaired chromosomes during the metaphase stage of cell division. Each member of a homologous pair is similar in length & banding pattern. Male & female sets differ only in the sex chromosome: a male is labeled XY, a female XX. Each human cell contains 46 chromosomes in total, 23 of maternal & 23 of paternal origin. Credit: Scott Camazine & Sue Trainor / Photo Researchers, Inc.

Iridescence Protected Ancient Moths

In the news:
"Ancient moth sported a green sheen"
By Sid Perkins
November 15, 2011
Forester Moth (Adscita statices) on clover flower. Forester moths are generally day-flying, nectar-feeding moths. Europe. Credit: David Hosking / Photo Researchers, Inc.

Medical Research on Chimpanzees?

Captive chimpanzee (Pan troglodytes). Credit: Nigel J. Dennis / Photo Researchers, Inc.

In the news:
"Chimps' Days in Labs May Be Dwindling"
By James Gorman
New York Times online
November 14, 2011

Specializing Parasites (Schistosoma mansoni)

In the news:
"Parasites drove human genetic variation"
By Cassandra Willyard
November 11, 2011

Schitosoma parasites; male and female together. This fluke lives in the veins of the intestines and bladder, attaching itself to blood vessel walls using a suction pad (center). The female lives in the groove on the male's back. It ingests blood cells through its mouth. Schistosome eggs pass into water in urine and feces. The larvae produced can infect humans through their skin. Enlargement 280x. Credit: Eye of Science / Photo Researchers, Inc.


In the news:
"Exceptional memory linked to bulked-up parts of brain"
By Laura Sanders
ScienceNews online
November 13, 2011
Obsessive-compulsive disorder. Colored Positron Emission Tomography (PET) scans of a human brain, showing active areas in obsessive compulsive disorder. The brain is sectioned axially (left), sagittally (center), coronally (at right). In this patient, positive correlations (activity increases as symptoms get stronger) are in the top row, seen colored in the left orbital region, prefrontal, left frontal gyri & thalamus. Negative correlation (activity decreasing as symptoms strengthen) are in the bottom row in the right frontal gyrus and parietal regions. Active areas colored red/yellow show blood flow detected by a radioactive tracer. Credit: WDCN / Univ. College London / Photo Researchers, Inc.

Magnetic Moon

In the news:
"How the moon got its magnetism"
By Nadia Drake
Science News online
November 9, 2011

Totality during a lunar eclipse. A lunar eclipse occurs as the Moon passes into the Earth's shadow. The red light is due to shorter wavelengths, such as blue light, being scattered more in the atmosphere than longer wavelengths such as red light. Lunar eclipses occur only at full Moon, and then only when the Earth and Moon are correctly aligned (about 2-3 times a year). This image was obtained by combining exposures from a Schmidt-Cassegrain telescope. The eclipse took place on March 3, 2007, this view is from Sicily, Italy. Credit: Philippe Morel / Photo Researchers, Inc.

The Sky Didn't Hit Earth When It Fell! (phew)

In the news:
"Giant asteroid passes near Earth"
BBC News online
November 9, 2011

Meteor Crater aka Barringer Crater or Canyon Diablo near Winslow, Arizona. A nickel-iron meteorite about 50m across impacted the plain some 50,000 years ago carving out a crater 1,200m in diameter and 170m deep. Its rim rises 45m above the surroundings. Purchased in 1903 by mining engineer Daniel Barringer who hoped to exploit the presumed large iron-nickel mass. But the mining bonanza evaporated as had most of the meteorite upon impact. It is still owned by the Barringer family. Credit: Georg Gerster / Photo Researchers, Inc.

Babbage's Analytical Engine

In the news:
"It Started Digital Wheels Turning"
By John Markoff
November 7, 2011
New York Times

Babbage's Analytical Engine. A "mill", or part, of the Analytical Engine designed by Charles Babbage (1791-1871). This was completed in 1910 by Babbage's son. The Analytical Engine was a development of Babbage's earlier Difference Engine. Both were designed as mechanical calculators, originally to help with work in numerical problems in the calculus. Both machines were left unfinished at the time of Babbage's death. The principles established by the concept of these machines, however, are fundamental in computing and are applied today.
Credit: SPL / Photo Researchers, Inc.

Happy Birthday, Marie Curie

Marie Curie, Polish scientist (November 7, 1867 - July 4, 1934).
Credit: Mary Evans / Photo Researchers, Inc.

Eternal Youth?

In the news:
"Signs of Aging Halted in the Lab"
By James Gallagher
BBC News online
November 2, 2011

Muscular atrophy.
Light micrograph of a section through muscle fibers showing an area affected by neurogenic muscular atrophy (bottom right). Normal muscle fibers are seen at top left. Nerve damage has lead to the muscle fibers becoming shrunken and atrophied (wasted). It is only the muscle fibers controlled by the damaged nerves
that are affected.

Credit: Biophoto Associates /
Photo Researchers, Inc.

Screening Cancer Screening

In the news:
"Considering When It Might Be Best Not to Know About Cancer"
By Gina Kolata
New York Times
October 30, 2011

Mammography. Woman undergoing breast screening by X-ray mammography, a technique which reveals the fine details of internal breast tissues. The breast is compressed into a flat plane between a plastic sheet and a metal X-ray plate. Breast tissue is then exposed to low-dose X-rays from the X-ray machine (upper right) to form a mammogram. Mammography is used to routinely screen women in order to detect breast tumors at an early stage. Once a tumor has been located, other techniques are employed to identify it. Biopsy (tissue sampling) of the tumor will confirm whether it is cancerous. Photographed at the European Institute of Oncology in Milan, Italy. Credit: Mauro Fermariello / Photo Researchers, Inc.

Type 1 Diabetes

In the news:
"More Ways to Cope With Type 1 Diabetes"
By Jane E. Brody
New York Times online:
October 24, 2011

Kindergarten teacher helps student (age 6)
with type one diabetes check her blood-sugar levels.
Credit: Ellen B. Senisi / Photo Researchers, Inc.

Check Your Receipt...for BPA

In the news:
"Check Your Receipt: It May Be Tainted"
By Rachel Nuwer
New York Times online:
November 1, 2011

Bisphenol A, molecular model. This chemical is used in the plastics industry, both as an antioxidant and as a component of epoxy resins and polycarbonate plastics. Atoms are represented as spheres are color-coded: carbon (black), oxygen (red) and hydrogen (white).
Credit: Dr. Mark J. Winter / Photo Researchers, Inc.

Hearing Voices?

Voice recognition. Conceptual computer artwork of voice patterns (jagged waveforms, red), a circuit diagram and a human brain, representing computer voice recognition and speech synthesis.
Credit: Mehau Kulyk / Photo Researchers, Inc.
In the news:
"Telling the Story of the Brain's Cacophony of Competing Voices"
By Benedict Carey
New York Times online:

mRNA Matters

In the news:
"Brain gene activity changes through life"
By Laura Sanders
ScienceNews web edition: 10/27/2011

Computer artwork of messenger ribonucleic acid (mRNA), which consists of groups of three nucleotide bases that code for different amino acids, the building blocks of proteins. At lower right is a representation of ribosomes, which are found in cells (outside of the nucleus) and attach to the mRNA to read this code.
Credit: Jean-Francois Podevin / Photo Researchers, Inc.

Global Warming is Real

In the news:
"The Case Against Global-Warming Skepticism"
By Richard Muller October 21, 2011

Various types of extreme weather that can be attributed to the effects of global warming (clockwise from left: flooding, hurricane, winter storm, drought/desertification). Credit: Robin Treadwell / Photo Researchers, Inc.

Aging Genomes

"No shortage of dangerous DNA"
Science News
By Tina Hesman Saey Web edition : Monday, October 17th, 2011
Scanning electron micrograph of a human chromosome from a cultured lymphocyte showing spiral structure, prepared using the ototo (osmium impregnation) technique. Magnification 25,000x @ 5x7(inches).Credit: Biophoto Associates / Photo Researchers, Inc.