A bright fireball was seen over much of southeast France and northern Italy at about 6.20 pm local time on Wednesday 17 February 2015. A fireball is defined as a meteor (shooting star) brighter than the
planet Venus. These are typically caused by pieces of rock burning up in
the atmosphere, but can be the result of man-made space-junk burning up
on re-entry.
Fireball seen over northern Italy on Wednesday 17 February 2016. You Reporter.
Objects of this size probably enter the Earth's atmosphere several times
a year, though unless they do so over populated areas they are unlikely
to be noticed. They are officially described as fireballs if they
produce a light brighter than the planet Venus. It is possible, though
unlikely, that this object will have produced meteorites that reached
the surface (an object visible in the sky is a meteor, a rock that falls
from the sky and can be physically held and examined is a meteorite),
though most meteorites come from larger objects that penetrate further
into the atmosphere before exploding, and therefore have a better chance
of producing fragments that reach the surface.
Vapor trail left by the 17 February 2015 fireball meteor. You Reporter.
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