Does Something Unknown Lurk at the Galactic Center?
Posted on May 8th, 2009 chrdann 4 comments It may be a bit of a long way away (26,000 ly) but it is an interesting place to go. At 26,000 light years away it would take 26,000 years as measured by clocks on Earth at the speed of light, and no time at all as measured by your watch. Time is relative, not fixed. Strange, but true. Our galaxy, the Milky Way, can be seen just by looking up on a decent night. the naked eye is the best instrument to use so try it here Galactic Center So what makes up the galactic centre? Well there is a clumpy ring of gas (rich in molecules) and dust about 5–15 ly from the exact centre. Inside this is a dense star cluster around the bright radio source Sagittarius A, which is believed to mark the very centre of the Galaxy. Black holes are invisible but can be detected by their influence on nearby stars. By observing the motion of 28 stars orbiting the Milky Way’s centre scientists believe that there is actually a supermassive black hole there, so Sagittarius