Over the past few years, the field of astrobiology has made great strides. With missions such as Kepler making exoplanet discoveries commonplace, the question no longer is “Are other planets out there?” but “When will we find a true twin of Earth?” A new book, “Five Billion Years of Solitude,” takes the reader from the … Continue reading "Book Review: ‘Five Billion Years of Solitude’ by Lee Billings"