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$1M Turing Award winners advocate for encryption

This year's $1 million A.M. Turing Award goes to a pair of cryptographers whose ideas helped make the Internet possible. Both men say giving governments control over encrypted communications puts everyone at risk.

dateMar 01, 2016 in Security
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Image: Eclipse season begins for NASA's SDO

The 2016 spring eclipse season of NASA's Solar Dynamics Observatory began Feb. 19, 2016. These seasons – a time when Earth blocks SDO's view of the sun for a period of time each day – last around three weeks and happen ...

dateMar 01, 2016 in Space Exploration
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Understanding the magnetic sun

The surface of the sun writhes and dances. Far from the still, whitish-yellow disk it appears to be from the ground, the sun sports twisting, towering loops and swirling cyclones that reach into the solar upper atmosphere, ...

dateJan 29, 2016 in Space Exploration
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Solar analemma 2015

If you took a picture of the Sun every day, always at the same hour and from the same location, would the Sun appear in the same spot in the sky? A very fine image, compiled by astrophotographer Giuseppe Petricca from Italy, ...

dateJan 06, 2016 in Space Exploration
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