Mathematician calculated that Space too big for Aliens to find us
With Space being so large there is always a good chance that there is alien life out there similar to us. However none have come to visit us so far. The reason, according to mathematician Rasmus Bjork, is that space is so large that it would take billions of years to probe the universe.
The mathematician calculated that eight probes traveling at 30,000km a second (Nasa’s current Cassini mission to Saturn is traveling at 32km a second) and each capable of launching up to eight sub-probes, would take about 100,000 years to explore a region of space containing 40,000 stars.

When he scaled up the search to include 260,000 such systems in our galaxy’s habitable zone, the probes took almost 10 billion years.
This estimate could be shortened if the aliens could pick up on radio and television broadcasts coming from our planet.
Reference for posting: http://www.news.com.au






