Approaching Solar Storm Forces ISS to Take Cover 118
vichyschwa writes "A Coronal Mass Ejection resulting from an X3 Solar Flare earlier today is forcing the ISS and Shuttle astronauts to take cover and may result in communication disruptions. Last week, the same sunspot generated what astronomers described as a rarely imaged solar tsunami. The activity began with an X9 flare Dec. 5. According to Spaceweather.com, "satellites may experience some glitches and reboots, but astronauts are in no danger." However, the astronauts were ordered to a protective area of the space station as a precaution."
X2 vs X9 (Score:5, Informative)
I was confused by this, so I looked it up.
From the Wikipedia article on Solar Flares: http://en.wikipedia.org/wiki/Solar_Flare [wikipedia.org]
Solar flares are classified as A, B, C, M or X according to the peak flux (in watts per square meter, W/m2) of 100 to 800 picometer [wikipedia.org] X-rays [wikipedia.org] near Earth, as measured on the GOES [wikipedia.org] spacecraft. Each class has a peak flux ten times greater than the preceding one, with X class flares having a peak flux of order 10-4 W/m2. Within a class there is a linear scale from 1 to 9, so an X2 flare is twice as powerful as an X1 flare, and is four times more powerful than an M5 flare. The more powerful M and X class flares are often associated with a variety of effects on the near-Earth space environment. Although the GOES classification is commonly used to indicate the size of a flare, it is only one measure.
Re:Fantastic four (Score:3, Informative)
Re:Take Cover? (Score:4, Informative)
Re:Take Cover? (Score:5, Informative)
Think of it as a storm cellar in space.
Topic drift: gyroscopes (Score:3, Informative)
You've been carrying around examples your entire life. Fluid-filled loops, one for each axis, little hairs along the inside to detect fluid rotation.
Try this. Sit up straight in a swivel chair, kick it into a spin, maintain the spin until you get used to it. Then quickly lean forward. You will then know exactly how a gyroscope feels when you try to tilt it. Have a bucket handy or do it on an empty stomach.
Besides, look how well organic technology worked for the Vorlons and the Shadows. Unless you're going to argue that it's a bad idea because they were both fictional and they both lost.
Re:Look north tonight (Score:3, Informative)
Re:How?? Easy. (Score:5, Informative)
X-ray flux raw data (Score:5, Informative)
Re:Take Cover? (Score:3, Informative)
Re:Look north tonight (Score:3, Informative)
X3 is nothing.. (Score:3, Informative)
A few years ago we had that X28 flare!