The Secret Life of the Universe, by Natalie Cabroll, published by Scribner Publishers on August 13, 2024.

Natalie Cabroll, author of *Secret Life in the Universe*, a bestseller on Amazon, is a French-American explorer and astrobiologist, and director of the Carl Sagan Center for Extraterrestrial Intelligence. Cabroll studies life's adaptations to extreme environments and the impact of rapid climate change on life. In *Secret Life in the Universe*, this astrobiologist takes readers on an awe-inspiring cosmic journey to explore some of the most profound questions: Are we alone in the universe? How did life on Earth begin?

This book's adventure begins with a simple question: how did life on Earth begin? This question allows readers to understand the necessary conditions for life to exist elsewhere. What role did the Moon play? Did life on Mars sow the seeds of life on Earth? How many other Earth-like planets are there in the universe? Can humans migrate to other planets? The book raises other questions as well.

In her continuous and dazzling interstellar travels, Natalie relentlessly studies the most likely places near Earth to harbor life: while icy planets like Mars, Jupiter, and Saturn are the frontrunners, the latest research is redefining the limits of habitability, including unexpected worlds. Finally, our search for life beyond our solar system has witnessed a Uprising in the night sky: humanity has realized that there are as many planets as stars in the Milky Way. Within the Milky Way alone, there are over 300 million exoplanets located within their stars' habitable zones. The idea that humanity is alone, or that human civilization is the only advanced intelligent civilization, may simply be nonsense.

In her book, *Secret Life in the Universe*, Natalie describes the possibility that countless exoplanets orbiting stars similar to or different from our Sun outside our solar system meet the conditions for habitability, and even the possibility of civilizations existing there.

The author has a talent for science communication and provides a wealth of interesting details. She points out that the search for exoplanets has continued to heat up in recent years. Since 2009, more than 4,000 exoplanets have been discovered by the Kepler Space Telescope, hundreds of which have been confirmed as "Earth-like objects." Approximately 216 of these planets have been confirmed as landmasses or located within the habitable zones of their parent stars.

Recently, astronomers discovered a planet-like planet, Proxima Centauri b, approximately 4.25 light-years from Earth. This may be the most exciting discovery to date. Astrophysicists, based on a new model of planetary evolution, have found that Proxima Centauri b, a red dwarf star, is most likely a small, rocky planet. Furthermore, exoplanets may contain significant amounts of water. Astronomers believe their model successfully reproduces the similarity in mass and age of planets with conditions similar to Earth, suggesting that terrestrial planets are common. Even more interestingly, planets near this type of star are very small. Typically, their radii are between 0.5 and 1.5 times that of Earth. Future discoveries will likely confirm this conclusion.

The existence of extraterrestrial life is beyond doubt. Scientists believe that extraterrestrial life may exist in liquid form, and if one day they come to Earth, they could easily "flow" into your home through a crack in the door or window without knocking. The universe is so amazing, come and check out the scientific speculations in "The Secret Life of the Universe".