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TORONTO – If the skies are clear the next few nights, Canadians might get a light show.
On July 16, the sun unleashed an Earth-directed coronal mass ejection (CME). A coronal mass ejection, a release of plasma and particles, can eject a billion tons of matter and travel at several million kilometres per hour. This CME should reach Earth on July 18.
When they reach Earth, the particles get trapped in our magnetic field, resulting in Northern Lights. Typically Northern Lights, or aurorae, are visible closer to Earth’s poles. As Canadians, we are in a prime viewing location.
NASA has determined that this CME left the sun at 900 km/s. It may also pass by the MESSENGER spacecraft orbited Mercury as well as the Juno spacecraft that is on its way to Jupiter. NASA operators may put the spacecraft into safe-mode to protect their instruments.
Originally posted by Senduko
reply to post by smurfy
Pics or it didn't happen
A CME swept past Earth on July 13th. The impact was gentle and did not spark a geomagnetic storm. However, south-pointing magnetic fields in the CME's wake had greater effect. The "negative Bz" opened a crack in Earth's magnetosphere, allowing solar wind to pour in and fuel high-latitude auroras.
Solar wind flowing from the indicated coronal hole could reach Earth on July 19-20.