Earth Space Science

If a black hole is not a hole, then what is it? Find out what black holes are, what causes them, and how scientists first discovered them. Learn how astronomers find black holes, get to know our nearest black-hole neighbor, and take a journey that will literally s-t-r-e-t-c-h the mind.

In a desperate battle, Earth has temporarily freed itself from the clutches of the deadly Trellixian Empire. Billions are dead and it's only a matter of time before the enemy return. Seeking aid against the Trellixians, two exploration ships are sent out to search the galaxy for allies. If they fail, then the human race is doomed.

The Trellixian Empire was constantly expanding, seeking new worlds for its ever-increasing population. If worlds were discovered with existing sentient populations, they were cleansed to make room for colonization. Hundreds of budding civilizations had been eliminated by Trellixian battle fleets. On Earth, years in the past, a scout ship fleeing from the Trellixians crashed. Scientists investigating the wreckage discovered what the Trellixians had done to the world the scout ship escaped from. They also discovered it was only a matter of time before the Trellixians reached Earth.

Meet Earth. Planet Awesome! And your awesome home! Actually, Earth is home to all the plants and all the animals in the solar system, including nearly eight billion people. Humans have accidentally moved Earth's climate change into the fast lane, and she need your help to put on the brakes. Earthlings need Earth, and Earth needs Earthlings, so let’s save Earth together!

Lord Anakreon, Warden of the First Circle, has lost a weapon. Not just any weapon; the Planet Forge is an ancient alien artefact with the power to create worlds…or to end them.

The Earth had four fleets to fight the invading enemy. The first fleet valiantly protected earth, but it wasn’t enough. Three fleets would arrive soon and end the threat...but they never came through the wormhole. One ship escaped the massacre, fleeing deep into space while the rest of Earth’s defenses were destroyed. Only the barrier around the planet keeps the enemy from finishing what they started.

200 years ago it devoured Earth. 20 years ago it devoured Gilgamesh. 2 weeks ago it entered our dreams. Al isn’t just a spy, he’s one of the best covert agents alive. At least, he was before everyone in the system started dreaming about him. Now his cover’s blown and he’s out of his depth, scrambling for answers to a mystery humanity has never been able to solve. The Goo. The great cosmic, planet-eating substance that swallowed whole systems.

United we stand. Divided we fall. We stood together once. United. Proud. Humanity was one. Together we colonized the stars. Together we built an empire. That was a long time ago. Today humanity is fractured. Earth and Mars clash in war. Brother fights brother. Our fleets once faced the stars. Today they face each other in battle. Our empire frays. Hearts that once blazed with courage now burn with hatred. Meanwhile the true enemy draws ever nearer.

What do you know about planet Earth? Give curious kids a first look into space.

Mars, the red planet, is ingrained in our culture, from David Bowie's extra-terrestrial spiders to Captain Scarlet to War of the Worlds. It has inspired hundreds of authors, scientists and science-fiction writers - but why? What is it about this particular planet that makes it so intriguing? Ancient mythologies defined Mars as a violent harbinger of war, star-gazers puzzled over its peculiar motion, and astrologers defined human personalities by its position and bizarre dance through the sky.

Earth stands on the brink of doom, but hope lies in the Bertram Ramsay Space Station, evacuating seven million survivors. Jaxon Leith is struggling to recover from the explosion that rocked Compression, halting the evacuation and leaving two million legitimate occupants stranded on Earth. Together with the rest of the covert operations team, Jaxon continues the mission to neutralise the station's biggest threat: The Acolytes of Gaia.

Rosa De Angelo and Ellen McCarthy are about to become two of the newest victims of SEAS - Severe Environmental Allergy Syndrome. Haunted by dreams of orbs in the night, they wake up to news reports of UFO swarms and alien abductions by the thousands. Separated from their families, Rosa and Ellen are ushered into isolation tent cities established to prevent the public from having any further exposure to the growing number of SEAS victims.

They say hard times create strong men, strong men create good times, good times create weak men, and weak men create hard times. Marco Emery was born into hard times. He was raised in war. He grew up in bomb shelters and on battlefields, fighting to survive. He became a soldier. A war hero. Then, after vanquishing his last enemy, he retired to raise a family. And Earth moved on.

Un secreto enterrado en la Antártida por miles de años. Y un sargento muy cabreado por tener que hacer de niñera para los investigadores que tienen que resolver el misterio. La última misión de Patrick Finnegan, alias Bic, antes de jubilarse de los marines, lo lleva hasta las montañas subglaciales Ellsworth. Pero ¿el motivo de verdad por el que está ahí? Le debe un favor a un viejo amigo. Aunque eso no significa que lo hará con gusto. Cuando Bic ve lo que han descubierto, no puede creerlo. Tampoco está listo para el estallido de violencia que se va a desencadenar.

This pathbreaking book explores how life can begin, taking us from cosmic clouds of stardust, to volcanoes on Earth, to the modern chemistry laboratory. Seeking to understand life's connection to the stars, David Deamer introduces astrobiology, a new scientific discipline that studies the origin and evolution of life on Earth and relates it to the birth and death of stars, planet formation, interfaces between minerals, water, and atmosphere, and the physics and chemistry of carbon compounds.

È la sua ultima operazione prima del pensionamento e Patrick "Wic" Finnegan viene spedito sugli altipiani ghiacciati di Ellsworth. L'unica ragione per cui ha accettato? Deve un favore a un vecchio amico ma questo non vuol dire che lo faccia volentieri. Quando Wic finalmente vede ciò che la squadra di ricercatori ha scoperto, non può credere ai propri occhi: una tempesta furibonda si sta per scatenare sulla Terra.

No one on Earth knows the seeds of the world’s destruction just fell from space. Tiana knows what duty means though. It's why all her friends are dead. Alone on a primitive world. All her all her technology at the bottom of the ocean. Outnumbered by deadly enemies only she can bring to justice. If she fails her mission now, another sentient species will fall. And the Tyrant Empire will rise again - because Earth has just been infected with a fatal parasite.

Ein Geheimnis, verborgen in der Antarktis. Ein Rätsel, das seit Jahrtausenden auf seine Lösung wartet. Und ein Master Gunnery Sergeant aus Brooklyn, der ausgesprochen sauer ist, weil er auf einen Haufen Wissenschaftler aufpassen soll.

Earth has survived an alien virus in this post-apocalyptic story. The alien virus was used to cleanse the planet before harvesting, and the surviving humans were given thousands of spaceships and robots as war reparations. The few survivors must adapt to survive.

Today, we take for granted that a telescope allows us to see galaxies millions of light years away. But before its invention, people used nothing more than their naked eye to fathom what took place in the visible sky. So how did four men in the 1500s - of different nationality, age, religion, and class - collaborate to discover that the Earth revolved around the Sun? With this radical discovery that went against the Church, they created our contemporary world. Heaven on Earth is an intimate examination of this scientific family.