
Nemesis No More? Comet-Hurling 'Death Star' Most Likely a Myth
The so-called 'Nemesis' star has not been flinging dangerous comets at Earth.
Find out everything there is to know about extinction and stay updated on the latest extinction news with the comprehensive articles, interactive features and pictures at LiveScience. Learn more about amazing discoveries scientists are making as they uncover the causes and other details of mass extinctions throughout history.
Related Topics: Evolution, Climate Change, DNA and Genes, Fossils