Questions and Answers

The Astronomy Café provides literally thousands of answers to the most common questions about space, space travel and other topics. Visit the ‘Ask the Astronomer’ webpage to find answers to your basic space questions, or ask a new question at the end of my blogs.

Click here:   Ask the Astronomer

Ask the Astronomer – The Top-100 most frequently asked questions at Ask the Astronomer from 1995 to 2015! Over 10 million requests for these FAQs. What is Dark Matter? Will Betelgeuse become a supernova? Can a planet ever explode? And many others!!! ($9.26; 10 tables; 156 pages)  Purchase book at