Light from the Heart Nebula
Credit & Copyright: Matt Russell

Explanation: What powers the Heart Nebula? The large emission nebula dubbed IC 1805 looks, in whole, like a human heart. The nebula glows brightly in red light emitted by its most prominent element: hydrogen. The red glow and the larger shape are all created by a small group of stars near the nebula's center. A close up spanning about 30 light years contains many of these stars is shown above . This open cluster of stars contains a few bright stars nearly 50 times the mass of our Sun, many dim stars only a fraction of the mass of our Sun, and an absent microquasar that was expelled millions of years ago. The Heart Nebula is located about 7,500 light years away toward the constellation of Cassiopeia.
Go here to get high resolution for FREE desktop..
https://www.spaceweather.com/

HEART NEBULA: Far, far away, 7500 light years from Earth, there's a Valentine waiting for pickup. Astrophotographer John Chumack framed it in the eyepiece of his 4-inch telescope and offers this high-resolution snapshot for anyone who needs a lovely desktop background. "It's the Heart Nebula, also known as IC 1805," he explains. "I thought readers of Spaceweather.com might like it on Feb. 14th." Happy Valentines Day!

And new stories for 2008/02/14

Real-time solar storm warning now operational, protecting astronauts and satellites



Highly energetic solar particles are generated by solar flares and can be harmful to astronauts and sensitive satellite circuits. Solar flares are most likely to occur during periods of heightened solar activity (i.e. during solar maximum at the peak of the 11 year solar cycle), and future manned missions will need to be highly cautious not to be unprotected in space at these times. Many attempts are underway at forecasting solar activity so "solar storms" can be predicted, but a form of early warning system is required to allow time for astronauts to seek cover and satellites put in a low-power state. Now, using the Solar and Heliospheric Observatory (SOHO), scientists are testing a new method of detecting high energy solar ions, in real-time.
(more…)
-------------------------------------------------------


Synthetic Black Hole Event Horizon Created in UK Laboratory

Researchers at St. Andrews University, Scotland, claim to have found a way to simulate an event horizon of a black hole - not through a new cosmic observation technique, and not by a high powered supercomputer… but in the laboratory. Using lasers, a length of optical fiber and depending on some bizarre quantum mechanics, a "singularity" may be created to alter a laser's wavelength, synthesizing the effects of an event horizon. If this experiment can produce an event horizon, the theoretical phenomenon of Hawking Radiation may be tested, perhaps giving Stephen Hawking the best chance yet of winning the Nobel Prize.
(more…)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Titan has "hundreds of times more" liquid hydrocarbons than Earth

According to new Cassini data, Saturns largest moon, Titan, has "hundreds" times more liquid hydrocarbons than all the liquid fossil fuel deposits on Earth. This is impressive as Titan's 5150 km diameter is only about 50% larger than Earth's Moon and only a little larger than the planet Mercury. Titan's hydrocarbons cycle into the atmosphere, fall as rain and collect in lakes creating massive lakes and dunes.
(more…)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


You wouldn't think espionage would have much of a place here in Universe Today, but you'd be wrong. Four people in the US were arrested recently, accused of selling selling secrets to the Chinese. And what were they selling? Details about the space shuttle and other US aerospace programs.
(more…)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Early stars that began to form about 200 million years after the Big Bang were strange creatures. From observation, the earliest stars (formed from coalescing primordial gas clouds) were not dense enough to support fusion reactions in their cores. Something within the young suns was counteracting the collapsing gas clouds, preventing the core reactions from taking place. Yet, they still produced light, even in absence of nuclear processes. Could dark matter have had a part to play, fueling the stellar bodies and sparking
early stars to life?
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

FROM..

UniverseToday.com