Space is full of mysteries

Ethan Siegel is a Ph.D. astrophysicist, author, and science communicator, who professes physics and astronomy at various colleges. He has won numerous awards for science writing since 2008 for his blog, Starts With A Bang, including the award for best science blog by the Institute of Physics. His two books, Treknology: The Science of Star Trek from Tricorders to Warp Drive, Beyond the Galaxy: How humanity looked beyond our Milky Way and discovered the entire Universe are available at Amazon. Follow him on Twitter @startswithabang. His blog includes a monthly podcast where he posts answers to questions from readers in the “Ask Ethan” series. Topics he has covered include adaptive optics, using lasers in astronomy to adjust for atmospheric turbulence, the detection of gravitational waves from colliding black holes by LIGO, and why quantum entanglement does not allow faster-than-light communication. His blog had been viewed 2 million times. (Dr. Ethan Siegel books)