Astronomers aren't being poetic when they say this star is a diamond. Scientists have identified what is possibly the coldest white dwarf ever detected. In fact, this dim stellar corpse is so cold that its carbon has crystallized, effectively forming a diamond the size of Earth, astronomers said. "It's a really remarkable object," study leader David Kaplan, a professor at the University of Wisconsin-Milwaukee, said in a statement from the National Radio Astronomy Observatory (NRAO). "These things should be out there, but because they are so dim they are very hard to find." More via Space.com.
The auction has been closed.