Earth Space Science

Satellites may exist out in space, but they let us study Earth from the outside looking in. From climate change to natural disasters and more, find out how scientists are using satellites to tackle some of our world's most challenging problems.

It’s been eight years since an alien invasion drove a small surviving group of settlers to seek refuge in an underground shelter. Cut off from the rest of humanity, the ragtag band has maintained a narrowly functioning colony due to communal effort and salvage runs. Alex Archer has her own duties as a dog handler. While this off-world colony may be harsh, Ash, Alex’s black shepherd raised to sense threats, makes living in it a little nicer.

This superlative collection of futuristic tales explores ground-breaking supernatural themes from the founding heroes of the science fiction genre. The short story form is perfect for capturing the atmospheric tension of these legendary stories.

The galaxy burns. The enemy, a race of alien scorpions, storms from star to star. Planets smolder in their wake. Across the galaxy, they hunt humans. Long ago, we humans had a planet of our own. Long ago, we could have resisted the scorpions. But today we are refugees. We are lost in darkness. We haven't seen Earth in 2,000 years. We, the last humans, must band together. We must resist. We must fight the scorpions. And we must find Earth! Only Earth can unite us. Only Earth can kindle our hope. Only on Earth can we defend our species.

Brady Garrett needs to go home. He's a conscripted recruit on Defender Three, one of a network of stations designed to protect the Earth from alien attack. He's also angry, homesick, and afraid. If he doesn't get home he'll lose his family, but there's no way back except in a body bag. Cameron Rushton needs a heartbeat. Four years ago Cam was taken by the Faceless - the alien race that almost destroyed Earth.

Mordecai The Brown was content to move on. He'd had his fun, had his vengeance, and had his next adventure all planned out. Then someone had to get it into their head to extort him for help overthrowing a planet. With a friend's life on the line, simple reprisal just won't do. With the help of his honorary niece and nephew, Jessie and Eric, Mort devises a plan of both rescue and vengeance, involving an elaborate deception to disguise a galactic-scale betrayal.

Aliens ripped a hole above Earth, arriving with a massive space station. I sorta figured we'd be enslaved to fight in their wars or exterminated for our resources. Nope. The hip-high Iglax were merchants with ugly squished faces and thick blue fur. While they weren't much to look at, they sure did have some wonderous technology.

Nikola Tesla (1856 -1943) was a Serbian American inventor, engineer, and physicist. In his work Talking with Planets, the prodigious inventor describes receiving radio waves from nonterrestrial sources.

At last, the Earth and the Colonial Union have begun formal discussions about their relationship in the future - a chance for the divisions in humanity to be repaired. The diplomats and crew of the Clarke are on hand to help with the process, including Ambassador Ode Abumwe and CDF Lieutenant Harry Wilson, both of whom were born on Earth. But not everyone wants the human division to be repaired.... And they will go to great lengths to make sure it isn’t....

CONTENTS: Introduction; I Just Make Them Up, See; Someday; The Feeling of Power; Living Space; Satisfaction Guaranteed; The Last Question; Jokester; The Immortal Bard; Spell My Name With an "S"; The Ugly Little...

Return to the greatest contest in the galaxy in this “beguiling, bewitching” (Seanan McGuire, New York Times bestselling author of the October Daye series) sequel to the hilarious USA TODAY bestseller Space Opera from New York Times bestselling author and finalist for the Hugo, Nebula, World...

Alex Archer is a soldier now, the only civilian survivor from Scorpio to join the NAC Defense Corps. With their training complete, Alex and her friend Private Isa Cressey find themselves on emergency combat deployment with their new unit. The destination is the Alpha Corvi system, where an allied warship has vanished. Alex can guess why.

The battle lines are collapsing, and the Legion of Wolves cannot hold back the tide. Luna and Earth are both falling to the enemy, and there is little hope as the defense is pushed back on all sides. But when Wolf learns about a race in a distant part of the galaxy that has successfully fought the vanhat to a standstill, he decides to launch an expedition to seek their help. The AI Collective has also learned about the expedition, though, and intends to kill humanity before they can find aid.

When Kell and his team return to Earth many years after their departure, they find that their world has changed almost beyond recognition. Not only has a second wave of greenhouse flooding caused sea levels to rise, but society has been changed by the consequences of the climate shift. Few people want to face Jordan Kell's news. He must convince Earth's new rulers that the human race is in danger of extinction unless it acts to forestall the death wave coming from the galaxy's heart.

Earth burns. After generations in exile, we returned to our long-lost planet. Scarred. Haunted. Survivors. We - the last humans - are finally home. But our enemies still crave our blood. Seven alien species unite. Seven fleets bombard our planet. Seven armies invade our beautiful world. They have one goal: To kill us all. We refuse to lose Earth again. We will resist. We will fight for every hill, every valley, every stone, and blade of grass. We will defend our planet. At any cost. Together, we will raise our voices. We will sing the song of Earth. We will tell the enemy: Earth is ours!

Both Mak'to'ran and Star Force return to the Sol/Terraxis System, setting up a summit meeting that will irrevocably alter both civilizations going forward. Sound interesting? The author thinks so too! Listen to Star Force: Return to Earth and experience the compelling world of this science fiction story.

They came from deep space. They came to destroy us. Fifty years ago bloodthirsty aliens devastated the Earth. Most of humanity perished. We fell into darkness. But now we rise from the ashes. Now we fight back. Marco Emery was born into the war. After his mother is killed, he joins the Human Defense Force, Earth's ragtag army. Emery must survive basic training, become a soldier, and finally face the aliens in battle. Against the alien onslaught, Earth stands alone. But we will fight. We will rise. We will win.

A distress transmission from Mars research colony warns of an advanced and unknown enemy approaching the heavily populated lunar colony. An elite marine unit commanded by Major Mitch Taylor is dispatched to protect the beleaguered civilians. However, the attack is merely a prelude to a massive invasion of Earth.

What causes Jupiter’s Great Red Spot? How have volcanoes shaped the land on many planets? How do space shuttles launch and dock with space stations? This series introduces young listeners to the objects within our solar system and the tools people use to explore the mysteries of space. This volume includes Earth, Jupiter, Mars, Mercury, Neptune, and Saturn.

In this deeply original book, science writer Anil Ananthaswamy sets out in search of the telescopes and detectors that promise to answer the biggest questions in modern cosmology. Why is the universe expanding at an ever faster rate? What is the nature of the "dark matter" that makes up almost a quarter of the universe? Why does the universe appear fine-tuned for life? Are there others besides our own?