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Dirtside Simulation
Topic: Alien Life
What would the future hold for a society where reputation was all that mattered? Astrobiology magazine reviews award-winning science-fiction from Cory Doctorow, Outreach Coordinator for the Electronic Frontier Foundation.

Star Light, Star Bright...Any Oxygen Tonight?
Topic: Alien Life
The possibility of complex life on other worlds may depend on green plant photosynthesis. But could this sunlight-dependent process evolve on worlds that orbit stars different from our sun?

SETI@home's Serendipity To-Do
Topic: Alien Life
The idle processing power of millions of computers, turned to look for a stray signal from billions of stars, now has a target: 150 promising signals to be handled again in a new SETI@home project.

Serendipidade Agitada do SETI@home
Topic: Alien Life
Depois da computação de mais de um milhão de anos de dados em mais de 4 milhões de computadores em todo o mundo, o SETI@home (SETI em casa), que processa dados em busca de sinais inteligentes do espaço, produziu uma lista de fontes de rádio que merecem uma segunda olhada.

What Does ET Look Like from 40 Light Years Away?
Topic: Alien Life
The Terrestrial Planet Finder (TPF) mission will have the technology to look for signs of life in the light reflected or emitted by planets orbiting nearby stars. But nobody knows exactly what signals life would emit. Clues from studies of Earth's early atmosphere are guiding the mission's technology development.

Anybody Out There? Part II
Topic: Alien Life
Famed neurologist Oliver Sacks is the author of many books, including "The Man Who Mistook His Wife for a Hat" and "Uncle Tungsten". In this second of a two-part essay on astrobiology, Dr. Sacks muses on the possibility of life on other worlds.

Anybody Out There? Part I
Topic: Alien Life
Renowned neurologist Oliver Sacks is the author of many books, including "The Man Who Mistook His Wife for a Hat" and "Uncle Tungsten". In this first of a two-part essay on astrobiology, Dr. Sacks discusses his early fascination with the possibility of life on other worlds and the beginnings of life on Earth.

Aliens Depend on Time to Grow Brains
Topic: Alien Life
To understand how intelligence develops, we have only one example to study: the development of human intelligence on Earth. Since intelligent life took a long time to develop on Earth, some believe it will take just as long on other worlds.

Alienígenas Precisam de Tempo para Desenvolver Cérebros
Topic: Alien Life
Esperamos que alienígenas sejam muito mais espertos que nós. Não só eles possuirão a sabedoria de eras, mas viajarão a uma velocidade de empenamento, terão a habilidade de transformar (ou destruir) planetas inteiros e sua civilização se espalhará pelas galáxias.

Concerted Evolution
Topic: Alien Life
The rapid advances in genetic sequencing have allowed comparisons previously unavailable to those scientists who try to understand how such a complicated structure as DNA might have evolved. But communicating an entire organism compactly in code may require a more ancient art: the music of the spheres.

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