Ever since Voyager 2 flew past Neptune in 1989, the giant dark smudges that appear in the distant planet's atmosphere have presented a strange puzzle.Now, for the first time, we have observed...
The true identity of a star that has baffled astronomers for more than 100 years has finally come to light.HD 45166 is a dying Wolf-Rayet star around 3,000 light-years away. Like most...