
Space is so cool, and I love reading books that explain how we learn the stuff we know about space. That’s exactly what Dr. Lisa Kaltenegger delivers in Alien Earths. This is the story of how we look for exoplanets—worlds orbiting stars other than our own Sun—and specifically, how we might determine whether those exoplanets can support life similar life on Earth. Along the way we learn, as Kaltenegger did, so much more about…