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Death Rays from Space
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| Topic: Spaceship Earth |
08/27/09 |
| Summary: Life may have been significantly affected in the past by a cosmic ray blast, but researchers are still looking for the smoking gun. |
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Stellar Shrapnel Cuts Life Short
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| Topic: Spaceship Earth |
06/19/09 |
| Summary: If a star located light-years away explodes, it could take out life on Earth. A group of researchers previously proposed that this might explain a mass extinction event millions of years ago. A follow-up project is now trying to beef up the case. |
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The Eye of Space Storms
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| Topic: Spaceship Earth |
05/30/09 |
| Summary: NASA's THEMIS mission has been used to pinpoint the impact epicenter of an Earth-bound space storm, providing advance warning of its arrival. Storms such as this can dump large amounts of power into the Earth's atmosphere, causing beautiful auroras. However, space storms also have the potential to harm satellites and astronauts in orbit. |
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The Day the Sun Brought Darkness
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| Topic: Spaceship Earth |
03/15/09 |
| Summary: Twenty years ago, astronomers witnessed a powerful explosion on the sun. Shortly after, radio signals on Earth were jammed, satellites tumbled out of control and the entire Quebec power grid went down. The event showcased the powerful and immediate affects that the sun can have on the planet Earth. |
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Earth's Leaky Atmosphere
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| Topic: Spaceship Earth |
09/02/08 |
| Summary: Using satellite observations, scientists have discovered why the Earth is constantly leaking oxygen into space. The finding provides insight into the mechanisms behind oxygen loss on our planet. |
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Recycling a Solar Satellite
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| Topic: Spaceship Earth |
11/16/07 |
| Summary: NASA has extended the SORCE satellite mission until 2012. The satellite will now be able help scientists resolve predictions about the upcoming solar cycle peak and it's influence on Earth's climate. |
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Setting Stars Reveal Secrets
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| 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. |
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Ballooning to the Sun
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| 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. |
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Cluster Maps Convection
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| 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. |
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Argon Provides Atmospheric Clues
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| 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. |
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