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In 1961, Betty and Barney Hill claimed to have experienced a bizarre night that included extraterrestrials, flying saucers, and a few lost hours during which they could recall very little until they underwent hypnosis. Their mysterious story was just the first of many that have been told by people who have since come forward with their own similar experiences. Although there are thousands of people who claim to have experienced alien abduction, much of the world remains skeptical.

Imagine over three million square miles of sand dunes that are as tall as a ten-story building. That place is real—it's the Sahara Desert! Vast, yes! And home to fascinating creatures such as ostriches and fennec foxes as well as amazing plant life. The shallow roots of the mesquite tree can grow almost 200 feet across to absorb water.

When Florence Nightingale decided as a teenager that she wanted to become a nurse, her parents tried to talk her out of it, claiming that it wasn't a suitable profession for a woman. But she persisted in her career and went on to save countless lives of patients, especially of soldiers. Known as "The Lady with the Lamp," she is widely considered to be the founder of modern nursing. In this chapter book biography by critically acclaimed author Shelli R. Johannes, listeners learn about the amazing life of Florence Nightingale—and how she persisted.

In 1947, an unusual object crashed in the New Mexico desert and was recovered by the Roswell Army Airfield officers. People everywhere began to speculate what the object could be. Could it possibly be a flying saucer? Would that be proof of aliens and life beyond Earth? Even decades later, some people still believe that the Roswell Incident is the most famous UFO sighting ever.

Humans live longer now than they ever have in their more than three hundred thousand years of existence on earth. And most (if not all) of the advances that have permitted the human lifespan to double have happened in living memory. Extra Life looks at vaccines, seat belts, pesticides, and more, and how each of our scientific advancements have prolonged human life.

What Do We Know About Atlantis? lets curious young listeners dive into what we really know about the sunken city. First described by Plato, the idea of Atlantis has existed since 360 B.C.! Learn about the history of the Greek god Poseidon's relationship with the kingdom and the real research that's been done by historians and scientists who are trying to locate Atlantis. Featured in plenty of movies, books, and comics, Atlantis is still relevant in popular culture today...but does it really exist?

It might seem lonely at the top of the world, but the North Pole is teeming with life! Polar bears, walruses, and arctic seals make their home on sea ice that can be nine feet thick while the Inuit and other indigenous peoples continue their traditions and means for survival in this harsh climate.

What Do We Know About Bigfoot? lets curious young listeners explore what we actually know about the creature's mysterious history. Dive into the facts behind the most well-known footage of the cryptid, the Patterson-Gimlin film, and learn about actual scientific studies conducted to learn whether or not Bigfoot actually exists. Filled with accounts of over a century of potential sightings, this book will have every reader looking for footprints on their next hike. Bigfoot has been the star subject of movies, TV shows, books, and more... but is he really out there?

In a series of fun stories, innovator, inventor, social entrepreneur, and upstanding digital citizen Trisha Prabhu goes through the hows, the whats, and the whys of digital citizenship, showing readers how to lead with kindness and stop internet hate. For people who are just getting their first phone to others who have been scrolling, swiping, clicking and posting for years, this book makes us all consider what our role is in the digital world and how, together, we can make it a force for good.

Throughout history, women have been told that science isn’t for them. They’ve been told that they’re not smart enough, or that their brains just aren’t able to handle it. In this book, Chelsea Clinton introduces listeners to women scientists who didn’t listen to those who told them “no” and who used their smarts, their skills, and their persistence to discover, invent, create, and explain.

Whether sailing across the ocean, hiking through the jungle, or climbing the highest volcanic peaks, everywhere Alexander went, he observed the land, animals, and culture. And where others saw differences, Alexander spotted connections.

Budding backyard scientists can start exploring their world with this stunning introduction to these flowery show-stoppers - from seeds to roots to blooms. Learning how flowers grow gives kids beautiful building blocks of science and inquiry.

In 1916, Albert Einstein had a theory. He thought that somewhere out in the universe, there were collisions in space. These collisions could cause little sound waves in the fabric of space-time that might carry many secrets of the distant universe. But it was only a theory. He could not prove it in his lifetime.

Born and raised in India, Kalpana Chawla was told that she shouldn’t try to become an aeronautical engineer because it was hard for women everywhere to succeed in that field. But she persisted, getting her university degree and then immigrating to the US to keep studying. She then joined NASA and became the first Indian-born American woman to go to space. Though she was tragically killed in the Space Shuttle Columbia disaster, she continues to inspire people in India, the United States, and around the world to pursue their dreams of reaching for the stars.

Journalist Diana Kapp has crisscrossed this country writing for and about empowered girls, girls who expect to be leaders, founders, and inventors. This book takes it a step further. It says to girls: While you’re striving to be CEOs and world leaders, consider solving the biggest challenge of our lifetime, too - because you can do both at the same time, and here are 34 women doing just that.