Earth Systems

Since its 2009 launch, the Kepler satellite has discovered more than 2,000 exoplanets, or planets outside our solar system. More exoplanets are being discovered all the time, remarkable in their variety. Astronomer Michael Summers and physicist James Trefil explore these remarkable recent discoveries: planets revolving around pulsars, planets made of diamond, planets that are mostly water, and numerous rogue planets wandering through the emptiness of space.

The New York Times Bestseller. A radically thought-provoking account of a major shift in how we understand our Earth, not simply as an inanimate planet on which life evolved, but rather as a planet that came to life. ‘Full of conceptual twists and wonderful character’ - Ed Yong, author of An...

The Alcazar station has been attacked! Project Ibex, under the command of former teammate Irene has begun cutting a bloody path throughout the galaxy, delivering a single message. Humanity has arrived! From Tachyon to Boron and beyond Hrafn squad will pursue the Veles across the galaxy. Alliances will be forged; enemies will be made and the thin red line between hero and villain will be towed in the name of peace.

What do you do when you're one of the few people that's received training before your planet is inducted into a System? Mike and his group made it through the initial induction of Earth into the System and are using the training they received before that to try to help people in the area, all while growing more powerful. Rescuing the survivors in the suburbs of the nearby town leads to them running into all sorts of new monsters, gaining levels quickly as they clear out the threats, and rescuing the few survivors from those areas.

This collection is a carefully engineered low-frequency sound journey designed to gently guide your nervous system into a state of grounded stability and deep relaxation. At the core of this immersive experience lies the naturally occurring 7.83Hz Earth frequency (Schumann Resonance) — widely referenced in grounding and brainwave entrainment practices. The tracks gradually descend through slow, calming frequency ranges before settling into the stabilizing 7.83Hz zone, encouraging mental quiet, physical heaviness, and emotional equilibrium.

The only planet to support life, Earth has a lot going for it. Think you know everything there is to know about our home planet? Think again. Discover more about the blue planet we call home.

Everything is going according to plan. Ivan Susanin has successfully installed a beacon in the undead territory and returned home. The situation changes when the next mission to the city of goblins is delayed, while his home planet becomes the battleground. Monsters invade Earth, and Ivan must become one of the leaders and unite the players under his banner, albeit within the borders of his own country. If circumstances demand that he discloses his identity and cooperates with the authorities, so be it! Modern weapons and equipment, instructors, financing, and protection by law....

Erosion changes Earth's natural features. It breaks down materials and can help make something new. Discover why erosion is an important part of nature!

All living things need air to survive. Air also protects Earth. Discover why air is an important part of nature!

Plants and animals from millions of years ago left behind fossils. Fossils can teach people about the past. They are also used for fuel. Discover why fossils are an important part of nature!

Soil covers most of the land on Earth. It feeds plants and is home to many animals. Discover why soil is an important part of nature!

Most of Earth is covered in water. Water falls from the sky as rain or snow. All living things need water to survive. Discover why water is an important part of nature!

Different kinds of rocks are found on Earth. Many are found deep inside Earth. Discover why rocks are an important part of nature!

Bogs form from an overabundance of death, organic matter breaking down to form layer upon layer of peat. That peat gives rise to lifeforms that challenge our understanding of biology itself: amphibian-eating plants and acid-flinging mosses, plant clones that span thousands of square miles and...

Declan Dark never signed up to be a vampire—let alone a blind one with a mysterious System whispering in his skull. After one disastrous bachelor party, he's plunged into Sin City's secret supernatural underworld, where every shadow conceals a predator, and even his allies might be out for his blood.

The bestselling, award-winning author of The Midnight Library offers his funniest, most devastating dark comedy yet, a “silly, sad, suspenseful, and soulful” (Philadelphia Inquirer) novel that’s “full of heart” (Entertainment Weekly). When an extra-terrestrial visitor arrives on Earth...

The Royal Society's Science Book of the Year "...Henry Gee presents a pithy, fascinating account of the stages of biological evolution. He's a deliberate, engaged narrator whose slow pacing will require adaptation. This and creative background music and sound effects (dinosaur sounds?) create a...

Earth! My First 4.54 Billion Years is a lighthearted nonfiction audiobook about the formation and history of the world--told from the perspective of the Earth itself! "Hi, I’m Earth! But you can call me Planet Awesome." Prepare to learn all about Earth from the point-of-view of Earth herself!...

From writer Stacy McAnulty and illustrator Stevie Lewis, Moon! Earth's Best Friend is a light-hearted nonfiction audiobook about the formation and history of the moon—told from the perspective of the moon itself. Meet Moon! She's more than just a rock—she’s Earth’s rock, her best friend...

The water sprite with roots is personified as a friend who experiences many encounters, imbalances, fears, and hopes in his water cycle journey. Because he shares an affinity with any organic life form derived from carbon and hydrogen, he can communicate with other beings and express their stories from their realities. Most importantly, he talks the walk through his mission of discovering cyclical truths from the sun to water to nutrients to plants to animals to decomposing bacteria to respecting the biodiversity essential for all life.