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Setting Stars Reveal Secrets
Topic: Spaceship Earth
11/10/07
Summary: Watching stars set behind a planet from space can reveal unique details about the planet's atmosphere. Researchers at ESA are using orbiting spacecraft to learn about the atmospheres of Earth, Mars and Venus.

Ballooning to the Sun
Topic: Spaceship Earth
10/28/07
Summary: A solar telescope has been successfully launched to 120,000 feet using a balloon larger than a Boeing 747. The technology will be used in 2009 to launch polar balloon flights that will view details of the Sun's surface and collect data concerning the Sun's influence on the climate of Earth.

Cluster Maps Convection
Topic: Spaceship Earth
10/26/07
Summary: By mapping convection cells in Earth's magnetic field for the first time, scientists have shown that the behavior of the cells is linked to solar activity. The activity of our Sun has profound implications for the habitability of Earth, and studying this connection can help us understand the conditions for habitability beyond our Solar System.

Argon Provides Atmospheric Clues
Topic: Spaceship Earth
09/21/07
Summary: New studies on how gases are expelled from the Earth may change the way scientists view atmospheric formation on the Earth, Mars and Venus. Studying the dynamics of Earth's atmosphere is essential in understanding what makes our planet habitable today.

Sunspots Bring Rain?
Topic: Spaceship Earth
08/12/07
Summary: Scientists have revealed a connection between solar activity and periods of heavy rain in East Africa. The findings show one way in which changes in the Solar System environment can directly affect life on Earth.

Can a Biosphere Be Selfish?
Topic: Spaceship Earth
04/16/07
Summary: In this book review of "Scientists Debate Gaia," Charley Lineweaver discusses what astrobiology and the Gaia hypothesis have in common. Both are trying to recognize new forms of life by seeking universal connections between different kinds of systems.

Earth's Magnetic Cocoon
Topic: Spaceship Earth
04/08/07
Summary: Researchers have found that the Earth's magnetic field was nearly as strong 3.2 billion years ago as it is today, which suggests that even in its earliest stages the Earth was protected from the solar wind. The findings of are immense interest to astrobiologists.

James Van Allen and Astrobiology
Topic: Spaceship Earth
11/13/06
Summary: In a lifetime devoted to instrumentation and rocket science, James Van Allen made immense contributions to the exploration of the space environment and its astrobiological potential.

Weather Wobbles
Topic: Spaceship Earth
06/28/06
Summary: New technologies are enabling scientists to determine precisely the extent and causes of Earth's short-term wobbling. Like a spinning top, Earth wobbles as it rotates on its axis. In fact, it displays many different wobbling motions, ranging in period from a few minutes to billions of years.

The Song of Killer Electrons
Topic: Spaceship Earth
01/04/06
Summary: ESA's Cluster mission has revealed a new creation mechanism of 'killer electrons' - highly energetic electrons that are responsible for damaging satellites and posing a serious hazard to astronauts.

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