News tagged with sun

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Nearby failed stars may harbor planet

(Phys.org) —Astronomers, including Carnegie's Yuri Beletsky, took precise measurements of the closest pair of failed stars to the Sun, which suggest that the system harbors a third, planetary-mass object.The ...

Dec 16, 2013
4.9 / 5 (15) 1 | with audio podcast

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
5 / 5 (1) 0

What happened to comet ISON?

Astronomers have long known that some comets like it hot. Several of the greatest comets in history have flown close to the sun, puffing themselves up with solar heat, before they became naked-eye wonders ...

Dec 05, 2013
4 / 5 (5) 0 | with audio podcast

NASA investigating the life of Comet ISON

After several days of continued observations, scientists continue to work to determine and to understand the fate of Comet ISON: There's no doubt that the comet shrank in size considerably as it rounded the ...

Dec 02, 2013
4.6 / 5 (8) 0 | with audio podcast

SOHO shows new images of Comet ISON

As Comet ISON heads toward its closest approach to the sun—known as perihelion—on Nov. 28, 2013, scientists have been watching through many observatories to see if the comet has already broken up under ...

Nov 27, 2013
5 / 5 (9) 5 | with audio podcast