usain bolt of Jamaica broke the 100m Sprint world record at the 2009 world athletic championships, with a time of 9.58s. with this record , he became the world's fastest man. in contrast , dog runs at a speed of 30 km h-1 . if a dog chases usain bolt, will it be able to catch up with him​

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the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.