Friday, June 29, 2012

The Oceans of Titan

In the news:
by Dr. Tony Phillips
NASA Science
June 28, 2012
Sun beams filter down on Titan, Saturn's largest moon.
Credit: Steve A. Munsinger / Photo Researchers, Inc.

Tuesday, June 26, 2012

Swine Flu's Growing Death Toll

In the news:
By MyHealthNewsDaily
June 25, 2012
Flu virus A (H1N1). Influenzavirus A (H1N1) is of Orthomyxoviridae group. This virus is responsible for an infectious and contagious respiratory disease, with symptoms of fever, aches, strain, respiratory difficulties and cough. It can evolve to become pandemic. Viral diameter approximately 100nm. Viral magnification 1,000,000x at 10cm and image colorization with HDRI treatments on a Transmission Electron Micrograph view (TEM).
Credit: James Cavallini / Photo Researchers, Inc.

Monday, June 25, 2012

Immune to Vaccinations

In the news:
by Nathan Seppa
June 20, 2012
Composite photo illustration showing H1N1 flu vaccine vial and box superimposed over the chest x-ray of a patient with influenza who developed pneumonia.
Credit: Scott Camazine / Photo Researchers, Inc.

Friday, June 22, 2012

Interstellar Space - The Final Frontier (for now)

In the news:
by Dr. Tony Phillips
NASA Science
June 22, 2012

Composite image of the planets (and Pluto) orbiting around the sun. Not to scale.
Credit: Robin Treadwell / Photo Researchers, Inc.

Thursday, June 21, 2012

Ebay: Going Off the Grid

In the news:
By James Glanz
New York Times
June 20, 2012
Fuel cell drawing. Illustration of how a fuel cell works. In the effort to reduce pollution, fuel cells have been developed for use in electric car motors. However, the problem of the over-sized hydrogen reservoir has yet to be solved.
Credit: BSIP / Photo Researchers, Inc.

Wednesday, June 20, 2012

Could You Have Earworms?

In the news:
By Meghan Holohan
June 19, 2012
Headphones. Colored X-ray of the head of a person wearing a pair of audio headphones. Bones of the face and of the rounded cranium of the skull are seen. The internal electronics of the headphones and the attachment lead are also visible.
Credit: Gustoimages / Photo Researchers, Inc.

Tuesday, June 19, 2012

Polio Vaccine Banned By Taliban in Pakistan

In the news: 
by Declan Walsh
New York Times
June 18, 2012
Color enhanced Transmission Electron Micrograph (TEM) of the polio virus.
Credit: Richard J. Green / Photo Researchers, Inc.

Friday, June 15, 2012

Uranium-Thorium Dating

In the news:
by John Noble Wilford
New York Times
June 14, 2012
A photographic emulsion impregnated with a radioactive thorium salt reveals the tracks of alpha particles when developed. As Ernest Rutherford & Frederick Soddy found in 1900-1902, the decay of thorium initiates a chain of decays. First one radioactive element is formed, then that decays to another, & so on. This is why the emulsion picture shows the tracks of two or more alpha particles emerging from the same spot: they are the result of successive stages in the decay of a single nucleus. (The length of the alpha tracks in this negative picture is about 0.03 mm).
Credit: C. Powell, P. Fowler & D. Perkins / Photo Researchers, Inc.

Thursday, June 14, 2012

Beneficial Bacteria

In the news:
By Gina Kolata
New York Times
June 13, 2012
Bacterial colonies growing in a human hand print on agar gel. A hand was pressed onto the agar and the plate incubated. Under normal circumstances the human body is populated by up to 100 trillion beneficial bacteria that live on or inside us. They help to defend against harmful disease causing bacteria. Bacteria dislodged from skin on this hand's surface have fed on the nutrients in the agar gel and multiplied quickly. A single bacterial cell can become a colony of 250, 000 bacteria in six hours in these conditions. Other colonies outside the hand shape have grown from airborne bacteria.
Credit: Scimat / Photo Researchers, Inc.

Wednesday, June 13, 2012

Diet Soda and Weight Gain

In the news:
by Janet Raloff
Science News
June 13, 2012
Polarized light micrograph of fructose (sugar) crystals.
Credit: Leonard Lessin / Photo Researchers, Inc.

Monday, June 11, 2012

Sleepy Brains Crave Junk Food?

In the news:
June 10, 2012
Overweight man laying on a couch eating and reading a book. MR
Credit: David R. Frazier / Photo Researchers, Inc.

Friday, June 8, 2012

E. Coli 0154 Outbreak

In the news:
by Jim Avila
ABC News
June 8, 2012
E. coli bacteria, color enhanced scanning electron micrograph (SEM). Escherichia coli are Gram-negative rod-shaped bacteria that are part of the normal flora of the human gut. Some strains produce a toxin that causes severe diarrhea and can be fatal, especially in the very young or elderly. Magnification: x13,300 when printed at 10 centimeters wide
Credit: Eye of Science / Photo Researchers, Inc.

Thursday, June 7, 2012

"Please take sun exposure more seriously."

In the news:
by Jane E. Brody
New York Times
June 4, 2012
Young woman applying sunscreen to a child's nose. Ultraviolet light rays from the sun can damage skin cells. This can be seen in the form of tanning, freckles, and sunburns. Built-up sun damage may cause skin cancer, making sun protection at early ages all the more necessary.
Credit: Laurent / Carola / Photo Researchers, Inc.

Wednesday, June 6, 2012

New Breast Cancer Drug

In the news:
by Charlene Laino
June 4, 2012

BT2727 Close-up illustration showing a cross-section of a cancerous breast cell producing too many HER genes, which in turn produce an excessive number of HER2 receptors. The receptors attract growth factors, which stimulate the growth of more cells. Herceptin (generic name: Trastuzumab) and other antibodies inhibit HER2 receptors and VEGF growth factors. They also attract other elements of the immune system such as the killer cell pictured upper left.
Credit: Carol and Mike Werner / Photo Researchers, Inc.

Monday, June 4, 2012

Venus Transit

In the news:
by Dr. Tony Phillips
NASA Science
June 2, 2012
Venus begins to transit the face of the sun, on June 8, 2004. The image shows the mysterious black drop effect which can be seen just before the 3rd contact as the planet Venus transits the Sun's disk. A transit occurs when Venus passes in front of the Sun as seen from Earth. This is the first transit since 1882. Venus transits occur in pairs separated by eight years, with alternating intervals of 121.5 and 104.5 years in between pairs. Only Mercury and Venus can transit the Sun as seen from Earth.
Credit: Babak Tafreshi / Photo Researchers, Inc.