There has been a recent discovery of an Earth-sized “alien” planet very close to us, which has got scientists starting to think about interstellar exploration.
On October 16, 2012, a European team announced the existence of Alpha Centauri Bb, a world residing in the nearest star system to our own (about 4 million light years away, real close I know). The find could ignite serious and sustained efforts to explore the newfound planet and any siblings it may have in the three-star Alpha Centauri system, say researchers not involved in the discovery.
This is definitely a very excited find and would literally open the door to a whole new era of space exploration.
Read more at Space.com