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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: USMC
3/5 Oorah
Helmand, Sangin, far away high desert locations where history is being made. Where actions remind us of what the words “Honor, Courage, and Commitment” really mean. Where words that we hear often “… in keeping with the highest traditions of…” … Continue reading
Posted in A'stan, Marines
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Monday Mojo
Need a little bit of a kick start to get your Monday rolling? OOORAH!
Posted in Marines
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Marine Corps Observations on a…
Marine Corps Observations on a St Patrick’s Day | OP FOR http://t.co/LbnfLz3 via @AddThis
RT @CENTCOM: “(@USMC) Marine…
RT @CENTCOM: “(@USMC) Marines do not bleed. They do not eat, they do not sleep. They are not human.” Who said this?> http://1.usa.gov/hyrj1q
Scholarships
Have you ever wondered what those scholarship boards look for when selecting who gets the awards? A great article, here on exactly what the keys to getting that NROTC scholarship are. I wish I had known all of this when … Continue reading
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The Pacific
If you missed The Pacific on HBO, the have released it on DVD. Historically, a lot has been written and produced about the war in Europe. The Pacific campaign was an entirely different world. Island hopping, jungles, malaria, amphibious landings … Continue reading
Posted in History, USMC
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3 Gun
One of my goals this year is to manage to get to, and compete in one or more 3 gun matches. This is one of the sports that caught my interest, and got me to pickup a rifle again after … Continue reading
Posted in Shooting, USMC
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F-35B
So it appears that the STOVL variant of the F-35 program is a sticking point. As a result there may be a move to drop the B to focus on the A/C variants. While this would be a logical decision … Continue reading
Posted in Aviation, Marines
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Your Corps
On Veteran’s day, 2010 Marine LtGen John Kelly presented a speech, in St Louis at an event in celebration of the day. Nine years ago two of the four commercial aircraft took off from Boston, Newark, and Washington. Took off … Continue reading
Posted in Marines
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