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- Portrait of a Doomed Asteroid
A new study provides a possible explanation of mysterious X-ray flares detected by the Chandra K-ray Observatory for several years in the region of Sagittarius A*, or Sgr A*. The study suggests a cloud around Sgr A*, a supermassive black hole at the center of our Milky Way Galaxy, which contains hundreds of trillions of asteroids and comets that have been stripped from their parent stars. The flares occur when asteroids of six miles or larger in radius are consumed by the black hole. An asteroid that undergoes a close encounter with another object, such as a star or planet, can be thrown into an orbit headed towards Sgr A*. If the asteroid passes within about 100 million miles of the black hole, roughly the distance between the Earth and the sun, it is torn into pieces by the tidal forces from the black hole. These fragments would then be vaporized by friction as they pass through the hot, thin gas flowing onto Sgr A*, similar to a meteor heating up and glowing as it falls through Earth's atmosphere. A flare is produced and eventually the remains of the asteroid are swallowed by the black hole. Image Credit: Illustrations: NASA/CXC/M.Weiss
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Category Archives: Self Defense
Straight Forward in a Crooked World: Dark Arts for Good Guys: The Right to Knife pt II
Another article about blades from the “Dark Arts”. It’s a good read. Make sure to go back and read some of his previous work as well. … Continue reading
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Be Aware
How many times have you walked down the street and then suddenly had to stop and look around to figure out where you were, as your mind worked on the problems of the day and your feet just kept going? … Continue reading
Posted in Evil walks the earth, Guns, Self Defense
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Firearm Ownership
The folks over at Cheaper Than Dirt have a blog that they use to drive business. Hey, it is a commercial world out there, and we are still an economy that is based on capitalism, good for them. Every once … Continue reading
Posted in Firearms, Preparedness, Self Defense
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Common Sense
Maybe I am more sensitive than most people to issues of security. I’m not real sure why that is, maybe it was all the counter terrorism stuff that we did in the 80′s. Maybe it is because I travel so … Continue reading
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Why….?
There seems to be an interesting little trend popping up on the sites that I tend to read regularly. They all seem to focus around the question of “Why I Carry a Firearm”. There are some good reads, and some … Continue reading
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American Mumbai
Over at Blackfive the team took a look at: It’s worth thinking through the problem this author raises: how would the U.S. handle a Mumbai-like terror attack? It’s an interesting post on how different the US is regionally, and why. … Continue reading
Posted in Security, Self Defense, Society, Terrorism
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Situational Awareness
Now here’s some good advice that is basically self defence 101. “Exactly right,” I said, “Carrying a gun won’t do you any good if you don’t pay attention. The first thing you have to do is realize you live in … Continue reading
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Good Stuff
Sorry for the light posting recently. Closing out the quarter and all that so the blog has suffered. I’ll try and get some content out here in the next couple of days but it still looks to be a busy … Continue reading
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Evil Walks The Earth
I became a father three months before 9/11. Since that time I have become extremely focused on what takes place around me, and what I have in my bag of tricks to protect my family in times of trouble. Having … Continue reading
Posted in Evil walks the earth, Gun Control, Self Defense, Society
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Marine Corps Martial Arts Program
Well The Doc is back from the sandbox and he posted this video recently. Crawling in the moondust, amongst the other fun. Guys, this is just members of the squadron training, you do not want to be on the bad … Continue reading
Posted in Marine Sites, Self Defense, USMC
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