There’s something haunting the Ghost Nebula, located just 1,500 light years from Earth. It’s being driven to extinction by a star called Gamma Cassiopeiae, several light years away. Ultraviolet radiation from that powerful star actually makes the Ghost Nebula emit hydrogen-alpha radiation, which appears in red. The result is that the nebula is being destroyed, …
Continue reading “Space Photos of the Week: Ghost Nebula, Prepare to Die”