Thinking about Gemma-Rays. A Gemma-Ray Burst produces the strongest light in the Universe. If it were to hit the earth, those exposed to it would be blind permanently, even in a room with the blinds close and with their eyes closed. The after affects of that, it may create a smog that would cover the entire Earth, blocking the sunlight, and creating darkness on the entire planet. What is worse is that, this smog would last for years.
Since the Earth is blocked from the sun (our light and heat source), the temperature within our planet would decrease over time and could create another ice age.
The good news, is that there are no stars close to the Earth to do that. But there is one 7 light years away, which is getting to its time. If the Earth is it it's path when it it explodes, it could have some devastating effects on our planet.
The bad news is that, when is this star explodes, we'll have no warning. When it explodes. everything is lit up in a very bright brightness, 100x more brighter than the sun.
http://en.wikipedia.org/wiki/Gamma-ray_burst
Since the Earth is blocked from the sun (our light and heat source), the temperature within our planet would decrease over time and could create another ice age.
The good news, is that there are no stars close to the Earth to do that. But there is one 7 light years away, which is getting to its time. If the Earth is it it's path when it it explodes, it could have some devastating effects on our planet.
The bad news is that, when is this star explodes, we'll have no warning. When it explodes. everything is lit up in a very bright brightness, 100x more brighter than the sun.
http://en.wikipedia.org/wiki/Gamma-ray_burst