Earths Astronomy

Em outubro de 2017, cientistas de um dos maiores observatórios espaciais do mundo — localizado no topo de um vulcão dormente no Havaí — detectaram um objeto transitando por nosso sistema solar. A primeira hipótese foi a de que se tratava de um mero asteroide, como tantos outros que cruzaram e seguem cruzando nossa galáxia. Mas os dados coletados pelo telescópio Pan-STARRS1 revelaram detalhes curiosos, e bem anômalos, no comportamento desse visitante.

An extraterrestrial colony, in some form, may already exist, just awaiting discovery. But the greatest impediment to such an important scientific discovery may not be technological, but political. No scientific endeavor can be launched without a budget, and matters of money are within the arena of politicians. Dr. Ben Bova explores some of the key players and the arguments waged in a debate of both scientific and cultural priorities.

Every minute, several huge “snowballs” break up as they approach the Earth and deposit a large cloud of water vapor in Earth’s upper atmosphere. That’s the startling finding that world-renowned physicist Louis A. Frank came to after studying the images from the Dynamics Explorer 1 spacecraft. His conclusion, based on data acquired at the limits of detection, created a storm of controversy among scientists. This is the story that was told in The Big Splash, published in 1990. But, the story does not end there.

Wissensvermittlung mit Witz und Charme von Erfolgsautor Bill Bryson. Wie war das eigentlich mit dem Urknall? Warum starben die Dinosaurier aus? Was wiegt die Erde? Und wie ist das überhaupt möglich - die Erde zu wiegen? Erfolgsautor Bill Bryson nimmt mit auf eine atemberaubende Reise durch Zeit und Raum, berichtet über die Wunder des Universums, über die Erde und die Entstehungsgeschichte des Menschen. Dieser faszinierende Streifzug durch die Naturwissenschaften ist wie gemacht für alle, die endlich mehr über die Welt wissen wollen.

This is volume two of our series, and our astronaut is once again aboard a spaceship heading for deep space to avoid the self-destruction of Earth. Join us as nearly 200 of Earth's inhabitants flee for safety in a spaceship called The Ark.

This “accessible and always entertaining” (Booklist) combination of history, pop science, and in-depth reporting offers a fascinating account of the asteroids that hit Earth long ago and those streaming toward us now, as well as how prepared we are against asteroid-caused catastrophe.

In the early days of civilization, we knew nothing about the moon. It was considered as a god chasing the sun in an endless race through the sky. Today, we know much more than our ancestors. We can speculate on the creation of the moon and what the Earth would be without the moon. It turns out that our moon has played a much more important role in life development than anyone would have thought.

Today, Elon Musk's SpaceX is building one human-rated reusable spacecraft every week designed to send 100 colonists to Mars on each voyage. With this brilliant plan, SpaceX aims to colonize the Red Planet. This is not science fiction. These ships are in construction every day at a startling pace in order to make humanity a multiplanetary species, beginning this decade. Departing Earth Forever is the first manual written to and for Martian colonists—and for humankind back on the home planet witnessing this single most historic and momentous event in human history.