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Friday, September 5, 2014

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


New clues to determining the solar cycle

Posted: 03 Sep 2014 05:41 PM PDT

Approximately every 11 years, the sun undergoes a complete personality change from quiet and calm to violently active. The height of the sun's activity, known as solar maximum, is a time of numerous sunspots, punctuated with profound eruptions that send radiation and solar particles out into the far reaches of space. However, the timing of the solar cycle is far from precise.

How much gravity is enough?

Posted: 03 Sep 2014 01:35 PM PDT

Keeping upright in a low-gravity environment is not easy, and NASA documents abound with examples of astronauts falling on the lunar surface. Now, a new study suggests that the reason for all these moon mishaps might be because its gravity isn't sufficient to provide astronauts with unambiguous information on which way is 'up'.

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