News tagged with sun

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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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Comet at dawn

(Phys.org) —Soon after its discovery in late summer of last year, the media hyped ISON to be the comet of the millennium. At the time when it is expected to come closest to the Sun, on 28 November 2013, ...

Nov 12, 2013
5 / 5 (13) 5 | with audio podcast

Fossil from the depths of the solar system

(Phys.org) —ISON is approaching the Sun. An international observation campaign which involves ground-based telescopes, space probes and space telescopes has been running for some time and is already providing ...

Nov 11, 2013
5 / 5 (11) 0 | with audio podcast

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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Tilted suns

(Phys.org) —The Earth's axis of rotation is tilted 23.4 degrees to its orbital motion around the Sun (more precisely, its spin axis has a tilt of 23.4 degrees with respect to the axis of its orbit). This ...

Nov 04, 2013
4.8 / 5 (13) 0 | with audio podcast

Sun emits fourth X-class flare in a week

The sun emitted a significant solar flare—its fourth X-class flare since Oct. 23, 2013—peaking at 5:54 p.m. on Oct. 29, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare ...

Oct 30, 2013
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