1. And most of them did turn out to be something else, like a dim star, not a brown dwarf. 2. Brown dwarfs are believed to look like dim stars, glowing mostly with infrared radiation but lacking sufficient mass to ignite the internal nuclear fires that make stars shine. 3. Either they are wrong or scientists may have to assume that the whopper could be a dim failed star known as a brown dwarf. 4. It could be a dim failed star known as a brown dwarf. 5. Or they may actually be observing dim stars in nearby galaxies, and not any of the elusive dark matter. 6. Scientists meeting at the American Astronomical Society discuss the possibility that the universe is filled with faint galaxies composed of dim stars and dark matter. 7. Scientists suspect that it could be a dim failed star or a type of astronomical object that has never been observed before. 8. So, if what looks like a little dim star has lithium left over from its formation, it must not have much fusion under way in its center. 9. Some objects like dim stars, failed stars, giant planets and other obscure ordinary material may make up another fraction of the dark matter. 10. The astronomers followed a series of logical steps to convince themselves that they had found a real brown dwarf and not just a very dim red star. |