<P>At the heart of a far-off galaxy, a supermassive black hole appears to have had a case of the hiccups.</p>
Astronomers from MIT, Italy, the Czech Republic, and elsewhere have found that a previously quiet black hole, which sits at the center of a galaxy about 800 million light-years away, has suddenly erupted, giving off plumes of gas every 8.5 days before settling back to its normal, quiet state.
<P>At the heart of a far-off galaxy, a supermassive black hole appears to have had a case of the hiccups.</p>
