News tagged with sun

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Video: The Sun reverses its magnetic poles

This visualization shows the position of the sun's magnetic fields from January 1997 to December 2013. The field lines swarm with activity: The magenta lines show where the sun's overall field is negative ...

Dec 09, 2013
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Q&A: Comet ISON

(Phys.org) —Don Yeomans, a senior research scientist at JPL, keeps a watchful eye on near-Earth objects—asteroids, comets and other space rocks. Yeomans heads a group charged by NASA to watch for objects ...

Nov 26, 2013
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New solar instrument reaches orbit

An instrument that measures the sun's energy output is in orbit after it was launched last night on the U.S. Air Force's Space Test Program Satellite-3. The satellite was aboard a Minotaur I rocket that launched ...

Nov 21, 2013
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A six-minute journey to study Comet ISON

In an example of an extremely tight turnaround, a NASA-funded team has spent six months preparing for a mid-November launch to observe Comet ISON during a six-minute sounding rocket flight. The Far-ultraviolet ...

Nov 14, 2013
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NASA sees Veteran's Day solar flare

The sun emitted a significant solar flare that peaked at 12:14 a.m. EST on Nov. 10, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere ...

Nov 13, 2013
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Sun unleashes another X-class flare

The sun emitted its sixth significant flare since Oct. 23, 2013, peaking at 11:26 p.m. EST on Nov. 7, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through ...

Nov 08, 2013
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Sun sends out a significant solar flare

The sun emitted a significant solar flare, peaking at 5:12 p.m. EST on Nov. 5, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect ...

Nov 06, 2013
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