Large Asteroid will whiz by Earth on Thursday
It is expected to zip by at a distance of about 6.7 million kilometers from Earth
Raikoke volcano seen erupting in incredible image from space! (video-photo)
Scientists said the ash could have reached an altitude of 8 to 10 miles
Sperm can survive in Space, but don’t expect any Space Babies soon
The effect of microgravity is just one of many hurdles researchers must clear before safe human reproduction beyond earth becomes technically feasible