Science

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The Brightest Stars Don't Live Alone

A new study using ESO’s Very Large Telescope (VLT) has shown that most very bright high-mass stars, which drive the evolution of galaxies, do not live alone. Almost three quarters of these stars are found to have a close companion star, far more than previously thought. Surprisingly most of these pairs are also experiencing disruptive interactions, such as mass transfer from one star to the other, and about one third are even expected to ultimately merge to form a single star.

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New research using data from European Southern Observatory telescopes, including the Very Large Telescope, has revealed that the hottest and brightest stars, known as O stars, are often found in close pairs. Many of these binaries transfer mass from one star to another, a kind of stellar vampirism depicted in this artist's impression.

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Satellites See Unprecedented Greenland Ice Sheet Surface Melt

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For several days this month, Greenland's surface ice cover melted over a larger area than at any time in more than 30 years of satellite observations.

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The Sun has a great idea

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The Sun’s great idea

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A Taste of Solar Maximum

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Forecasters say solar maximum is still a year away. Earlier this month sky watchers got a taste of things to come when a powerful flare sparked Northern Lights over the United States as far south as Arkansas, Colorado and California.

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NASA Keeps its Cool in Derecho Aftermath

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The AIRS images for June 29 show the crescent shape of the initial stage of the derecho as it gathered strength on the Michigan-Indiana-Ohio border and began its rapid eastward movement. The infrared image shows the high near-surface atmospheric temperatures blanketing the South and Midwest United States, approaching 98 F.

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Hubble Has an Audience of Stellar Flashbulbs

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Hubble captured a crowd of stars that looks rather like a stadium darkened before a show, lit only by the flashes of the audience’s cameras.

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Man-made Pores Mimic Important Features of Natural Pores: Inspired by nature, researchers design tiny, synthetic pores that mimic important features of cellular ion channels and other molecular channels

Inspired by nature, an international research team has created synthetic pores that mimic the activity of cellular ion channels, which play a vital role in human health by severely restricting the types of materials allowed to enter cells.

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Atomic force microscopy images of artificial ion channels created by scientists. The images are of the same sample, with increasing magnification.

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Radiation damage bigger problem in microelectronics than previously thought

The amount of structural damage that radiation causes in electronic materials at the atomic level may be at least ten times greater than previously thought.

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Silicon wafer with radiation damage.

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Go Green with Web-Based Physical Therapy Software for Your Physical Therapy Practice

Implementing a web-based electronic medical records (EMR) system is the perfect opportunity for physical therapists to go green for the environment and save money at the same time. Marketing expert and physical therapist, Nitin Chhoda, is a leader in the deployment of electronic office systems and offered therapists new insights into the advantages of digital software.

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Electronic Medical Records

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Sun Sends Out Mid-Level Solar Flare

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This image was captured by NASA's Solar Dynamics Observatory (SDO) on July 19, 2012 of an M7.7 class solar flare. The image represents light in the 131 Angstrom wavelength, which is particularly good for seeing flares, and which is typically colorized in teal.

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