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Archive for the ‘The Sun’ Category

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Sagan Planet Walk: Down-to-Earth Cosmic Scale

September 26th, 2012

How best to put the distance between the Sun and the nearest star in perspective? Now the world’s largest exhibition – extending from New York to Hawaii – is to do just that and will be dedicated this week. The exhibition is named after the late Cornell astronomer Carl Sagan. Called the Sagan Planet Walk […]

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Astronaut Warning System for Outbursts from the Sun

July 13th, 2012

The Sun is acting up again! A huge coronal mass ejection on the Sun was recorded on July 12. Forecasters expect the cloud of energetic particles to arrive at Earth on July 14th. Its impact could spark moderate to severe geomagnetic storms, allowing auroras to be seen at lower latitudes than usual. Then on July […]

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Mission to a Star: NASA’s Solar Probe Plus

March 14th, 2012

Given all that recent solar storm activity that the Sun has been tossing at the Earth – it’s time for space researchers to hurl something toward the Sun! A Johns Hopkins University Applied Physics Laboratory (APL) team is developing NASA’s Solar Probe Plus – a spacecraft that will make the closest-ever flights past the Sun. […]

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Listen: Soundtrack of the Sun

March 13th, 2012

Hear, Hear: What’s a Solar Storm Sound Like? A “sonification” of measurements taken during a solar storm is data taken from NASA’s MESSENGER spacecraft at Mercury, as well as from NASA’s Solar and Heliospheric Observatory (SOHO), which is about 1 million miles from the Earth. To “sonify” the data, Robert Alexander, a University of Michigan […]

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Satellite Imagery: Sun-spurred Storm Flung in Direction of Earth

January 25th, 2012

Talk about your sunny disposition! The Sun is brewing with activity following one of the longest and weakest periods of action in many cycles In late January 2012, our nearest star offered a preview of coming attractions in the solar maximum of 2012–13. The Sun-spurred storm has the potential to disrupt some communications and satellite […]

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