margie ilene fischer

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APOD: The Hydrogen Clouds of M33 (2013 Dec 26) Image Credit & Copyright: Adam Block, Mt. Lemmon SkyCenter, U. Arizona http://apod.nasa.gov/apod/ap131226.html Explanation: Gorgeous spiral galaxy M33 seems to have more than its fair share of glowing hydrogen gas. A prominent member of the local group of galaxies, M33 is also known as the Triangulum Galaxy and lies about 3 million light-years distant. Its inner 30,000 light-years are shown in this telescopic galaxy portrait that enhances the reddish ionized hydrogen clouds or HII regions. Sprawling along loose spiral arms that wind toward the core, M33's giant HII regions are some of the largest known stellar nurseries, sites of the formation of short-lived but very massive stars. Intense ultraviolet radiation from the luminous, massive stars ionizes the surrounding hydrogen gas and ultimately produces the characteristic red glow. To enhance this image, broadband data was used to produce a color view of the galaxy and combined with narrowband data recorded through a hydrogen-alpha filter, transmitting the light of the strongest hydrogen emission line. To see the monochromatic narrowband data alone, move your cursor over the image, or take this video tour of the hydrogen clouds of M33. http://www.caelumobservatory.com/ http://skycenter.arizona.edu/ http://www.as.arizona.edu/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131226 #APOD

When stars sneeze

If you could watch over thousands of years, you’d find that the star is having a sneezing fit. It’s firing off rapid releases of super-hot, …

The Most Amazing Images NASA Took of Earth From Space This Year

PhysicsWhy Do You Feel Lighter at the Top of a Ferris Wheel?<p>Author: Rhett AllainRhett Allain<p>EcologyHow Plastic Straws Slip Through the Cracks of …

Mirfak is Perseus’ brightest star

Mirfak isn’t as famous as Algol, its brother star in the constellation Perseus. But Mirfak is easier to find and can help guide you to Algol.<p>The …

Where's The Best Of What's New?

<b>We're still adapting our Best of What's New pages from prior to 2014--thanks for your patience!</b><p><b>Until then, take a look at our 2014 BOWN winners.</b>

Window on Infinity: A New Year’s Photo Album From Space

NASA Goddard Space Flight Center / EPA<p>A still image taken from a NASA movie of the sun based on data from NASA's Solar Dynamics Observatory (SDO), …

US government prepares to regulate hand and face transplants

The world's first face transplant took place a mere eight years ago, but already the field is advancing at a rapid pace: surgeons in countries including France, China, and the US have all performed these intensive procedures with successful results. And now, the US government is getting ready to …

EarthSky’s 2018 meteor shower guide

Bad news. In 2018, moonlight will obscure the Delta Aquarid’s nominal peak in late July. Good news! The Delta Aquarids will still be flying at the …

Astronomy

Breast cancer spreads when tumors can’t ‘breathe’

Lack of oxygen inside a breast cancer tumor can trigger the chain of events that spreads the disease throughout the body, biologists say.<p>The …

To Make Intersections Smarter, We Need Cars To Be Smarter, Too

Anyone who has waited endlessly at a red light at an empty four-way intersection knows traffic signals are not the most efficient way to keep traffic flowing. Computer scientists have figured out a way to utilize the space in intersections far more efficiently. The problem is the solution will have …

After Major Comeback, Is The Gray Wolf Still Endangered?

The U.S. Fish and Wildlife Service is proposing to take the gray wolf off the endangered species list. The wolf had been extirpated from the West and had dwindled most other places in the U.S. The great canine has rebounded since it was reintroduced to the northern Rockies in the 1990s and is …

Large Magellanic Cloud: What is It? And How to Find It in the Sky?

People can see the The Large Magellanic Cloud without a telescope or binoculars. The cloud is a satellite galaxy of our Milky Way, floating in space …

How to Get the Best Deal on a Cruise

Growing up in the ’70s, I only knew one person who’d ever gone on a cruise: my grandmother. I vividly remember the excitement we all felt on her …

What To Watch Out For From Facebook In 2014

That's a truism, of course, because the social network has more than 1 billion members: every year will be a big year for Facebook.<p>Having said that, if you're interested in how the service will evolve, how the stock will perform, and where CEO Mark Zuckerberg wants to take the app in the future, …

Reddit Is Trying Something New: Making A Profit

By Gerry Shih<p>SAN FRANCISCO (Reuters) - Social news hub Reddit snagged an interview with Barack Obama last year. The big get for 2013 was reaching 90 million unique visitors a month, according to the company, on par with the likes of eBay. This season, even Microsoft co-founder and philanthropist …