Bu bloga Joy Division'ın çok sevdiğim bir şarkısının adını verdim. Zaman zaman kayda geçirmek istediğim ufak notlar ve fotoğraflar oluyor. Onları bu blog aracılığıyla paylaşacağım. (Foto: Jamaika/Zülal Kalkandelen)
the sun etiketine sahip kayıtlar gösteriliyor. Tüm kayıtları göster
the sun etiketine sahip kayıtlar gösteriliyor. Tüm kayıtları göster
1 Mart 2011 Salı
Solar Flare Eruption Recorded By NASA
A large and stunning solar flare was captured on camera by NASA this past week. According to the BBC, the eruption lasted about 90 minutes, and was the latest in a series of sunstorms.
NASA caught the flare in extreme ultraviolet light, using high definition and a cadence of a frame taken every 24 seconds, making the sense of motion appear seamless. The eruptions created a "tendril of plasma" (a solar prominence), which can be seen in the video.
Earlier this month, massive solar flares threatened to disrupt power grids and communication systems on Earth. But this most recent flare was not aimed at earth, and thus was not considered a threat to satellites or other systems. Fortunately for Earthlings, this week the solar flare just made for an awesome video. (via HuffingtonPost)
7 Şubat 2011 Pazartesi
Whole sun imagined for the first time
The sun is one of the objects most familiar to humanity, but until yesterday, we'd never seen all of it at once.
On February 6, NASA's twin STEREO probes moved into position on polar opposite sides of the sun and started beaming back the first images to capture the star's entire surface (see video above).
"For the first time ever, we can watch solar activity in its full 3-dimensional glory," says Angelos Vourlidas, a member of the STEREO science team at the Naval Research Lab in Washington, DC.
(Image: NASA)
This new ability should improve forecasts of solar eruptions. These violent magnetic events can wreak havoc with satellites and even power lines and railway signals on Earth. But without a view of the sun's entire surface, charged solar emissions can end up hurtling through space, even towards Earth, without warning.
The twin probes left Earth in 2006, heading for the positions they have now reached. They are expected to beam back images of the entire sun for the next 8 years.
(Source: New Scientist)
22 Nisan 2010 Perşembe
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