[ninty]

Just because scientists think their out there, doesn't mean they are. I mean, earth could be the only planet like it in the whole universe. Thats probably less liklet than getting struck by lightning 68 times and winning the lottery in one day, but until you prove it...

The reason their getting credit is because before they could only find planets that were huge like Jupiter because they had to look at the wobble of the star. Only huge planets make the star visibly wobble to us.

Recently they actually saw a planet like earth, which is a big step from saying their out there.

Anyway, yeah there are probably tons of earth like planets within habitable zones of their stars, but they are so far away, we'll definitely never get there in our life times. The closest star from our own is 4 light years away! We can't even travel close to the speed of light. Even if we could do a 1/4 the speed of light that would take us 16 years to get there.